{"id":1760,"date":"2020-01-14T10:42:16","date_gmt":"2020-01-14T10:42:16","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/gc\/hchemanswers\/?page_id=1760"},"modified":"2021-12-07T08:07:31","modified_gmt":"2021-12-07T08:07:31","slug":"answers-mcq-online-exercise-2_4a","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hchemanswers\/answers-mcq-online-exercise-2_4a\/","title":{"rendered":"Answers: MCQ Online Exercise 2_4A"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td width=\"50\">1.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-812\" src=\"https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture1-1024x167.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&#038;X-Amz-Security-Token=IQoJb3JpZ2luX2VjELL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDCxFSjuvqkmW3ULz%2BEV1%2FeC8toKdtw8Jl3SiKQz37XTAIgejE%2FXcaN5fODRu0wX1oST3gFp2%2BYvEIcgi1Tz9vDBygquQUIexAFGgwyNzM1NzAxOTU0MzMiDPrMpFjtGl9CqvppdSqWBUGRdkoYc0fsPxnLycBjyOM028XB%2FUDLM%2F2otU8WSZen4mbI2vhuX0Z1HV%2B3rzD2NAiSJZDAjqFyQ7xxclPajA7hYzYLEaOGYUhAvB%2BmgxZ9qqyusqlQmBYwGDfp3i59KJgLrp%2BlDsID%2BJ1mhAeeu%2BP9AluWqp9x3%2FcMTW%2BwKrcNsN1mKfaNcZC8wEFO%2BxEoErl6JH8x26Eo%2F92fnNCRX0G8okil31D0k4QBqzoGRaEdXC1iAC3nZBnjN5bHHJsirHh3TqKXQF%2BO24ubWAFmF0k83jw4dv7GFFBoTx2UNB6pg5J%2BJeEv%2B4%2FheSawlRYW77y2%2Bi3llkF9fLfsAhCSGKm3ToW5aaIKIp1Fg9rcinkYZXvAcGSi2VwTV50pcSdIsfD2bPF%2F%2BNvE%2F1awqALnjUr3Ug0IpNwR5KNIn4L8rtSolo8YVnQRP8Z53Wk60Ncsps9Ox8Uee%2F0WEBTyAS%2Bjz97Vj0oYylGGYUoK13oZrpnXijZdflQSwbpT5%2F8ebvFBKmXSDKzaIAGXhIiDLAx%2FN%2Fc1FGwauZtyAeQUOqtJqKfDX%2F75TqYTMOisEVyCJCJ2CJq2n%2B1Fi7qiE3rsRybE1m5Ustv8aF3%2BKODyVsY8PJ4UTijsuTYH9WpgQSoA6TFOEaGLr4%2F%2FXabgt2gU4Dej698gwSgIOBqUKTRMbBJ43uNabOUjg13O7ueLwc9dcwgXxg2KDhqnJ0ntoNCFVNAEfwezRI%2Fr6jONtF4OmmksxTQ1H17LLSqfFgEhei02a2cv0R26xFo4ZUpbBxoiW4EKhx9nxq8TNpIhPsPoLnOp9WNywNoaZAVfcqU8fPOhGoG8VGt3hqYaLd44yeej%2Fw5CsR8cGf4VnOK3FRZJK47n7R2W6dDZURkzMJrCndAGOrEB5jEuh%2FKM6N9DNidJdZacPa%2Ftt3bSSlc%2BRxG6QTUnyITMnyyMZVQmcc0Eqadm3KU%2FYR2TEMEWsk0igKa%2Bth9kFfLhQczFYf86lUeXRyHUnCxNpxTk6I8uiekTZXE14KSQKG9crq2F%2FdcD08GINGgBDQ7uGFDvXBXLqxg3TCVkDZX2FvRhbcOw%2BQ%2FZg2XOBUU0Gs%2BGVaP4wqIbWaJBsiVbYbB0zuRVgk4%2BgMfSvkOsju9%2B&#038;X-Amz-Algorithm=AWS4-HMAC-SHA256&#038;X-Amz-Credential=ASIAT7MQN47UXAKUNZHP%2F20260515%2Feu-west-1%2Fs3%2Faws4_request&#038;X-Amz-Date=20260515T182556Z&#038;X-Amz-SignedHeaders=host&#038;X-Amz-Expires=900&#038;X-Amz-Signature=ac62a46ce1639c2985078f2f9022d1e00d01762ebf86c6033744b58c18c92c47\" alt=\"picture1\" width=\"882\" height=\"146\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td>2.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture5-e1638864210337.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-184 size-full\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture5-e1638864210337.jpg\" alt=\"\" width=\"1197\" height=\"447\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture5-e1638864210337.jpg 1197w, https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture5-e1638864210337-300x112.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjELL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDCxFSjuvqkmW3ULz%2BEV1%2FeC8toKdtw8Jl3SiKQz37XTAIgejE%2FXcaN5fODRu0wX1oST3gFp2%2BYvEIcgi1Tz9vDBygquQUIexAFGgwyNzM1NzAxOTU0MzMiDPrMpFjtGl9CqvppdSqWBUGRdkoYc0fsPxnLycBjyOM028XB%2FUDLM%2F2otU8WSZen4mbI2vhuX0Z1HV%2B3rzD2NAiSJZDAjqFyQ7xxclPajA7hYzYLEaOGYUhAvB%2BmgxZ9qqyusqlQmBYwGDfp3i59KJgLrp%2BlDsID%2BJ1mhAeeu%2BP9AluWqp9x3%2FcMTW%2BwKrcNsN1mKfaNcZC8wEFO%2BxEoErl6JH8x26Eo%2F92fnNCRX0G8okil31D0k4QBqzoGRaEdXC1iAC3nZBnjN5bHHJsirHh3TqKXQF%2BO24ubWAFmF0k83jw4dv7GFFBoTx2UNB6pg5J%2BJeEv%2B4%2FheSawlRYW77y2%2Bi3llkF9fLfsAhCSGKm3ToW5aaIKIp1Fg9rcinkYZXvAcGSi2VwTV50pcSdIsfD2bPF%2F%2BNvE%2F1awqALnjUr3Ug0IpNwR5KNIn4L8rtSolo8YVnQRP8Z53Wk60Ncsps9Ox8Uee%2F0WEBTyAS%2Bjz97Vj0oYylGGYUoK13oZrpnXijZdflQSwbpT5%2F8ebvFBKmXSDKzaIAGXhIiDLAx%2FN%2Fc1FGwauZtyAeQUOqtJqKfDX%2F75TqYTMOisEVyCJCJ2CJq2n%2B1Fi7qiE3rsRybE1m5Ustv8aF3%2BKODyVsY8PJ4UTijsuTYH9WpgQSoA6TFOEaGLr4%2F%2FXabgt2gU4Dej698gwSgIOBqUKTRMbBJ43uNabOUjg13O7ueLwc9dcwgXxg2KDhqnJ0ntoNCFVNAEfwezRI%2Fr6jONtF4OmmksxTQ1H17LLSqfFgEhei02a2cv0R26xFo4ZUpbBxoiW4EKhx9nxq8TNpIhPsPoLnOp9WNywNoaZAVfcqU8fPOhGoG8VGt3hqYaLd44yeej%2Fw5CsR8cGf4VnOK3FRZJK47n7R2W6dDZURkzMJrCndAGOrEB5jEuh%2FKM6N9DNidJdZacPa%2Ftt3bSSlc%2BRxG6QTUnyITMnyyMZVQmcc0Eqadm3KU%2FYR2TEMEWsk0igKa%2Bth9kFfLhQczFYf86lUeXRyHUnCxNpxTk6I8uiekTZXE14KSQKG9crq2F%2FdcD08GINGgBDQ7uGFDvXBXLqxg3TCVkDZX2FvRhbcOw%2BQ%2FZg2XOBUU0Gs%2BGVaP4wqIbWaJBsiVbYbB0zuRVgk4%2BgMfSvkOsju9%2B&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UXAKUNZHP%2F20260515%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260515T182556Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3261ed9fb3e492ffb1223cacc5822efce5a307f1ae047097f623b18278b1ebd4 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https:\/\/glow-prod-gc.s3.eu-west-1.amazonaws.com\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture6-300x158.jpg?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjELL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDCxFSjuvqkmW3ULz%2BEV1%2FeC8toKdtw8Jl3SiKQz37XTAIgejE%2FXcaN5fODRu0wX1oST3gFp2%2BYvEIcgi1Tz9vDBygquQUIexAFGgwyNzM1NzAxOTU0MzMiDPrMpFjtGl9CqvppdSqWBUGRdkoYc0fsPxnLycBjyOM028XB%2FUDLM%2F2otU8WSZen4mbI2vhuX0Z1HV%2B3rzD2NAiSJZDAjqFyQ7xxclPajA7hYzYLEaOGYUhAvB%2BmgxZ9qqyusqlQmBYwGDfp3i59KJgLrp%2BlDsID%2BJ1mhAeeu%2BP9AluWqp9x3%2FcMTW%2BwKrcNsN1mKfaNcZC8wEFO%2BxEoErl6JH8x26Eo%2F92fnNCRX0G8okil31D0k4QBqzoGRaEdXC1iAC3nZBnjN5bHHJsirHh3TqKXQF%2BO24ubWAFmF0k83jw4dv7GFFBoTx2UNB6pg5J%2BJeEv%2B4%2FheSawlRYW77y2%2Bi3llkF9fLfsAhCSGKm3ToW5aaIKIp1Fg9rcinkYZXvAcGSi2VwTV50pcSdIsfD2bPF%2F%2BNvE%2F1awqALnjUr3Ug0IpNwR5KNIn4L8rtSolo8YVnQRP8Z53Wk60Ncsps9Ox8Uee%2F0WEBTyAS%2Bjz97Vj0oYylGGYUoK13oZrpnXijZdflQSwbpT5%2F8ebvFBKmXSDKzaIAGXhIiDLAx%2FN%2Fc1FGwauZtyAeQUOqtJqKfDX%2F75TqYTMOisEVyCJCJ2CJq2n%2B1Fi7qiE3rsRybE1m5Ustv8aF3%2BKODyVsY8PJ4UTijsuTYH9WpgQSoA6TFOEaGLr4%2F%2FXabgt2gU4Dej698gwSgIOBqUKTRMbBJ43uNabOUjg13O7ueLwc9dcwgXxg2KDhqnJ0ntoNCFVNAEfwezRI%2Fr6jONtF4OmmksxTQ1H17LLSqfFgEhei02a2cv0R26xFo4ZUpbBxoiW4EKhx9nxq8TNpIhPsPoLnOp9WNywNoaZAVfcqU8fPOhGoG8VGt3hqYaLd44yeej%2Fw5CsR8cGf4VnOK3FRZJK47n7R2W6dDZURkzMJrCndAGOrEB5jEuh%2FKM6N9DNidJdZacPa%2Ftt3bSSlc%2BRxG6QTUnyITMnyyMZVQmcc0Eqadm3KU%2FYR2TEMEWsk0igKa%2Bth9kFfLhQczFYf86lUeXRyHUnCxNpxTk6I8uiekTZXE14KSQKG9crq2F%2FdcD08GINGgBDQ7uGFDvXBXLqxg3TCVkDZX2FvRhbcOw%2BQ%2FZg2XOBUU0Gs%2BGVaP4wqIbWaJBsiVbYbB0zuRVgk4%2BgMfSvkOsju9%2B&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UXAKUNZHP%2F20260515%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260515T182556Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b5737195320ea016c28e9a4c514b065a689806703086eae0e835b64e4288b38f 300w\" sizes=\"auto, (max-width: 838px) 85vw, 838px\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td>4.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0D [SiO<sub>2<\/sub>]<\/td>\n<\/tr>\n<tr>\n<td>5.<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u00a0<a href=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture51.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-513\" src=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture51.png\" alt=\"Picture5\" width=\"924\" height=\"1136\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/gc\/public\/hchemanswers\/uploads\/sites\/5342\/2015\/11\/Picture51.png 797w, 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