{"id":164,"date":"2018-05-02T13:09:20","date_gmt":"2018-05-02T13:09:20","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/?page_id=164"},"modified":"2018-05-04T13:20:48","modified_gmt":"2018-05-04T13:20:48","slug":"marking-guide-exercise-2_5a-experimental-determination-of-structure","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/marking-guide-exercise-2_5a-experimental-determination-of-structure\/","title":{"rendered":"Marking Guide:  Exercise 2_5A Experimental Determination of structure"},"content":{"rendered":"<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td>\u00a01.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a02.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a03.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a04.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a05.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a06.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a07.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a08.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a09.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a010.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a011.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-165\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture98.jpg\" alt=\"\" width=\"580\" height=\"793\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture98.jpg 922w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture98-220x300.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3f262a0db8fb212c2b2276bba3c4bfd5becd76d8e7cd3a1a7d672e7a7ddc154b 220w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture98-768x1050.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=918bdd89a7c3e10b271f6fb04bdbb9ba8a639a211bc8277144f52f11f0c039a5 768w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture98-749x1024.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=16440ed9db18d07bbad58e6c009bc6d629d8fc29e12be79a0188a2608ed9caa3 749w\" sizes=\"auto, (max-width: 580px) 85vw, 580px\" \/><\/td>\n<\/tr>\n<tr>\n<td>\u00a012.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-177\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture121.jpg\" alt=\"\" width=\"580\" height=\"776\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture121.jpg 942w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture121-224x300.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=89b94a0203d6f77dff02aa87fa7e714f4de25b47e18507cc476328a8a0652e2b 224w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture121-768x1027.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=628c775a2d47ab073eec132840f7931e8ba5bc1871e06f0cb8d1c9a21054c747 768w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture121-766x1024.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=78be15eb1de1116f57395233b3e036abecfcf22e12a2c0cf6b55c27b1f7f0f0b 766w\" sizes=\"auto, (max-width: 580px) 85vw, 580px\" \/><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a013.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-274\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture90-1.jpg\" alt=\"\" width=\"280\" height=\"298\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture90-1.jpg 1055w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture90-1-282x300.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=bf4f3be6e0e62bb4e13230713b4e93231a7e3171305d9fffef420a2b56a7e8b5 282w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture90-1-768x817.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=c8d0a5cfb9e104b02ad59cc64aa70a873ee377a43f8d81ba4db4e69e8aa59159 768w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture90-1-963x1024.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=657dfa14cc5778f8368c1f7b64efa5629fbdc19701675c4f6b25fb86d76c50b7 963w\" sizes=\"auto, (max-width: 280px) 85vw, 280px\" \/><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a014.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-328\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture29.jpg\" alt=\"\" width=\"580\" height=\"262\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture29.jpg 1010w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture29-300x136.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=8a5efea4c0750c919c9343ec4486028a2151bccf9c3f034ee474be84492e2cc4 300w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture29-768x348.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=ec009f97465a301ba1fed44caf222be960f473ca81b0ab599f8b4f7f2b4289e7 768w\" sizes=\"auto, (max-width: 580px) 85vw, 580px\" \/><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>\u00a015.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-205\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture21.jpg\" alt=\"\" width=\"580\" height=\"786\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture21.jpg 930w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture21-221x300.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=fda37da330e1c281e666a621a0b464573432548bc44e8ddcaf72cb92e6c8792f 221w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture21-768x1041.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=0f7adce70b1d90fae05b93512151501af30240bcdb00dccd308456e0f2ab82e5 768w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/ahchemmarkingguides\/uploads\/sites\/9808\/2018\/05\/Picture21-756x1024.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGsaCWV1LXdlc3QtMSJIMEYCIQDR%2BvP22DwhpQO7labHdcnNDnGgoz5X9qevexwJAowKEAIhAJ3KLVfNDsUabRYVSFM09H7fwQVLxQZpQW3wbkXoinQvKrkFCDQQBRoMMjczNTcwMTk1NDMzIgwEt0Ewk9EcgbQVeBgqlgUfpGqrBp%2By3QQdjjPP%2B6faRtwCw5%2FQcQqfhUuTzr4xYiOQl3r2EJrNqooPgqIZj%2B5bdCb3JxRR%2B0xkna6BdDcEP0cSBLc0XqHnsMCR%2F0HbJZAtL0NouJhnuWNdYwVKJsdzjG4LZquLJSOZL19YoRSRLlS1%2FsQLJ%2F1FwITsazejzYsMLWjCKV3dru0BTb0nESEe8ll%2BidJWLlISJYHUjwWoIkBYX%2Fs3dhEKrKZK0UP8wV89910xSVOIuLz9xrGvWCVaKyY6d5RKSkXuJOaV%2BQXuyQnN3wIBuQjPHzdKHNXKY%2F9d%2BuCZAe0FJ2H3RyzAC6jmktls%2BqWm6HlO%2Fx4vpB5BFzPhs9%2FCM3fAHCgIu%2BUXOUDhjHxUweaWWKohUKo3s5tCeeuvsm6963XdBa0Pn1OIyixGaL64bzquhMb3HvMK%2BSU3GKwZ0ZGuTYmKMZAantPiqgWLDXVDJ9751fw0T%2BNnO7RHjZbbzRK26WjCt1fKz8OA34ISAH5qqORc2FXbcmWvGnFLD0XW6j1wg8hxmESLnNMcfKXZYgcTcnh8iQpOd%2BHjB7brlhU18HFAWqqObu9zngqfYE3%2F47MgKZjx%2BeFkmAwWDXb2BPtT6baaMkyp3ydRiAtLv5%2F2hBiIxpmzsTcAuWJhPkQ8%2FA4h1oKWQ5%2BKcIidNZ6sK4NgJ6EQEYI0waZRkWbH418Tl%2Fu0XH0cz6mHVrfxqP5GoitE%2Brea6hG7h5bTLIK38Gg4hUlsyY%2BTy34fNIo4y4APi4pJjnf2fN9AMdbHvUKLxdKlUpyzZM%2F9pKh5NSqUIaDB7h%2FmmpT8AKDl%2FyVV54u0B2SbfIj3lb1seUt2fFBLehekIfewhe5c6HW%2FO1xa3GgEkyOt5evUgCkaFP%2BfvzDHiOXOBjqwAewx%2BvKNluHp2FnDoXtaxACzMRNqPkn%2F%2BC2qyay6ObFt4LWcVy6JsSmXnJXLPAekNxEFq4S5GYKJm7XLwRVk6aIN1kpa5I3z7oCAJtanxgeLHjy%2B2ib%2F4ChWdW6N%2BVQupo95mMuw4TiRr5hynnwchzVK9V%2BYi53oyfuHeV5lcVUpK2OL7qrl6CCaTvubgPzdg8VHtoIxPXTEv5zNmJS82dAt3gcQ513xbjA0a9RsuBed&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UZIKVX5F3%2F20260410%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260410T184604Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d51f5513b911fb768cced3cced1a4932ca01837164642c07e4d30b84ac00d671 756w\" sizes=\"auto, (max-width: 580px) 85vw, 580px\" \/><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; \u00a01. \u00a02. \u00a03. \u00a04. \u00a05. \u00a06. \u00a07. \u00a08. \u00a09. \u00a010. \u00a011. \u00a012. \u00a0 \u00a013. \u00a0 \u00a014. \u00a0 \u00a015. \u00a0<\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-164","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/pages\/164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/comments?post=164"}],"version-history":[{"count":6,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/pages\/164\/revisions"}],"predecessor-version":[{"id":329,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/pages\/164\/revisions\/329"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/ahchemmarkingguides\/wp-json\/wp\/v2\/media?parent=164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}