QUESTION 7 7.1 Clаssify the fоllоwing chаnges аs either Physical оr Chemical change: 7.1.1 Iron that rusts (1) 7.1.2 Perfume that is applied to your skin and then evaporates (1) 7.1.3 Treating excessive stomach acid (acid reflux) with baking soda. (1) 7.2 Give the correct chemical formula for each of the following: 7.2.1 Magnesium hydroxide (2) 7.2.2 Potassium carbonate (2) 7.2.3 Carbon monoxide (2) 7.2.4 Alluminium sulphide (2) 7.2.5 Copper(ii)sulphate (2) [13]
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