Question

The chemical equation shown below is not balanced (it does not follow the Law of Conservation of Matter). Ca + 2HCl --> CaCl2 + H How many Hydrogen atoms must be present in the product in order for the equation to be balanced? Responses 1.2.3.4

Answer 1

The following is the balanced equation. Count the H atoms on the product side.
Ca + 2HCl --> CaCl2 + H2