Q1: The answer is zink + acetic acid → zink-acetate + hydrogen gas
Zink is a chemical element with symbol Zn. Acetic acid is ethanoic acid with formula CH₃COOH.
Zn + CH₃COOH → (CH₃COO)₂Zn + H₂
zink + acetic acid → zink-acetate + hydrogen gas
Q2: The answer is calcium + citric acid → calcium-citrate + hydrogen gas.
Calcium is a chemical element with symbol Ca. Citric acid is a weak acid with formula C₆H₈O₇.
Ca + C₆H₈O₇ → Ca₃(C₆H₅O₇)₂ + H₂
