This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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b) (i) Hydrochloric acid reacts with magnesium oxide (a basic oxide) to form a salt and water. Hydrochloric acid + Magnesium oxide Magnesium chloride + Water (ii) Hydrochloric acid reacts with zinc metal (a metal above hydrogen in the reactivity series) to form a salt and hydrogen gas. Hydrochloric acid + Zinc Zinc chloride + Hydrogen (iii) Hydrochloric acid reacts with calcium hydrogen carbonate (a hydrogen carbonate) to form a salt, water, and carbon dioxide gas. Hydrochloric acid + Calcium hydrogen carbonate Calcium chloride + Water + Carbon dioxide (iv) Hydrochloric acid reacts with potassium hydroxide (a base) in a neutralization reaction to form a salt and water. Hydrochloric acid + Potassium hydroxide Potassium chloride + Water That's 2 down. 3 left today — send the next one.