In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products? (1 point)

C*H_{4} + O_{2} -> C*O_{2} + 2H_{2}*O

O C*O_{2} + H_{2}*O -> C*H_{2}*OH + O_{2}

O L*i_{2}*C*O_{3} -> LiO + C*O_{2}

Zn + 2HCl H 2 +ZnCl 2

Zn + 2HCl -> H_{2} + ZnCl_{2}