Changes

: [[Ethanoic Acid]] + [[Sodium]] → [[Sodium Ethanoate]] + [[Hydrogen]]

: <chem>2CH3COOH(aq) + 2Na(s) -> 2CH3COONa(aq) + H2(g)</chem>

: [[Ethanoic Acid]] + [[Calcium]] → [[Calcium Ethanoate]] + [[Hydrogen]]

: <chem>2CH3COOH(aq) + Ca(s) -> (CH3COO)2Ca(aq) + H2(g)</chem>