Example: quiz answers
Chemactive
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chemactive.comwww.chemactive.com GCSE CHEMISTRY ATOMIC STRUCTURE & BONDING High Demand Questions QUESTIONSHEET 1 (a) Oxygen and sulphur are …
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chemactive.comwww.chemactive.com GCSE CHEMISTRY RATES OF REACTION High Demand Questions QUESTIONSHEET 1 Calcium carbonate reacts with dilute hydrochloric acid …