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.
ScanSolve AI Answer
Welcome back ~Excel — missed you this week. Here is the solution to Q3a: a) i) Based on the experiment, calcium is more reactive. Calcium is lower in Group 2 than magnesium, and reactivity increases down the group. Therefore, calcium reacts more vigorously with dilute hydrochloric acid. ii) The balanced chemical equations for the reactions with dilute hydrochloric acid are: For magnesium: Mg(s) + 2HCl(aq) MgCl_2(aq) + H_2(g) For calcium: Ca(s) + 2HCl(aq) CaCl_2(aq) + H_2(g) iii) When magnesium ribbon is burnt in air, it reacts with oxygen to form magnesium oxide. Magnesium oxide iv) When magnesium oxide (the product from part iii) is boiled with water, it forms magnesium hydroxide, which is a base. This base will turn red litmus paper blue. Red litmus paper turns blue Send me the next one 📸