{"id":69,"date":"2014-10-09T11:37:20","date_gmt":"2014-10-09T11:37:20","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/?page_id=69"},"modified":"2019-09-18T09:29:29","modified_gmt":"2019-09-18T09:29:29","slug":"chem-changes-sht_4","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/chem-changes-sht_4\/","title":{"rendered":"Chemical Changes Homework Week 5"},"content":{"rendered":"

 <\/p>\n\n\n\n
\u00a0In your jotter write the DATE in the margin.
\nNow add a TITLE for your homework.
\nYour title should be the name of the Homework: Chemical Changes Homework Week 5<\/td>\n		\"pdficon\"<\/a><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00a0<\/strong><\/td>\nQuestion 1.<\/strong><\/td>\n<\/tr>\n
<\/td>\n\u00a0Matthew wanted to find out which type of marble would produce 20ml of gas the fastest when added to sulphuric acid<\/td>\n<\/tr>\n
<\/td>\n\u00a0\"\"<\/td>\n<\/tr>\n
<\/td>\n\u00a0The time taken to produce the quantity of gas is shown in the table below.<\/td>\n<\/tr>\n
<\/td>\n\u00a0\"\"<\/td>\n<\/tr>\n
a)<\/td>\n\u00a0Which type of marble would be the slowest to produce the 20ml of gas?<\/td>\n<\/tr>\n
b)<\/td>\n\u00a0Suggest the time that the flaked and lump chips would take to produce 20ml of gas<\/td>\n<\/tr>\n
c)<\/td>\n\u00a0If 4g of powdered<\/em><\/strong> marble was used instead of 2g, how long would the gas have taken to produce?<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\u00a0Question 2.<\/strong><\/td>\n<\/tr>\n
<\/td>\n\u00a0What happens in all<\/strong><\/em> chemical reactions?<\/td>\n<\/tr>\n
<\/td>\n\u00a0Question 3.<\/strong><\/td>\n<\/tr>\n
<\/td>\n\u00a0An enquiring scientist found three gas jars with sealed lids. He remembered they contained three different gases, but the labels had fallen off.<\/td>\n<\/tr>\n
<\/td>\n\u00a0\"ChCh7-2\"<\/a><\/td>\n<\/tr>\n
<\/td>\nThe gas in jar A relit a glowing splint.
\nThe gas in jar B put out a burning taper with a pop.
\nThe gas in jar C turned limewater milky.<\/td>\n<\/tr>\n
<\/td>\nIdentify the three gases, A, B and C.<\/td>\n<\/tr>\n
<\/td>\n\u00a0Question 4.<\/strong><\/td>\n<\/tr>\n
<\/td>\nA student set up four experiments to investigate the reaction between zinc and dilute hydrochloric acid. Which two experiments show how changing the particle size affects the speed of the reaction?<\/td>\n<\/tr>\n
<\/td>\n\u00a0\"\"<\/td>\n<\/tr>\n
\u00a0A<\/td>\n\u00a01 and 2<\/td>\n<\/tr>\n
\u00a0B<\/td>\n\u00a02 and 3<\/td>\n<\/tr>\n
\u00a0C<\/td>\n\u00a03 and 4<\/td>\n<\/tr>\n
\u00a0D<\/td>\n\u00a04 and 1<\/td>\n<\/tr>\n
<\/td>\nQuestion 5.<\/strong><\/td>\n<\/tr>\n
<\/td>\n\u00a0What element is represented by the symbol Hg. Use the periodic table you have in your homework diary. (if you don’t have your diary find a periodic table on the internet) <\/span><\/td>\n<\/tr>\n
A<\/td>\n\u00a0mercury<\/td>\n<\/tr>\n
B<\/td>\n\u00a0silver<\/td>\n<\/tr>\n
C<\/td>\n\u00a0hydrogen<\/td>\n<\/tr>\n
D<\/td>\n\u00a0helium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

  \u00a0In your jotter write the DATE in the margin. Now add a TITLE for your homework. Your title should be the name of the Homework: Chemical Changes Homework Week 5 \u00a0 Question 1. \u00a0Matthew wanted to find out which type of marble would produce 20ml of gas the fastest when added to sulphuric acid … Continue reading “Chemical Changes Homework Week 5”<\/span><\/a><\/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-69","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/pages\/69","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/comments?post=69"}],"version-history":[{"count":27,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/pages\/69\/revisions"}],"predecessor-version":[{"id":1464,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/pages\/69\/revisions\/1464"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecscis1hwrk\/wp-json\/wp\/v2\/media?parent=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}