Question

I just need some help getting the answers for this portfolio, but if someone could not only give the answers, but also explain how to get those answers so I better understand how to do this myself... It would be greatly appreciated.

Answer 1

Answer:

The balanced chemical reaction has equal number of atoms in reactant side as well as product side.

Explanation:

The balanced chemical reactions is as follows.

1.

$Zn+2HCl\rightarrow ZnCl_{2}+H_{2}$

2.

$4Fe+3O_{2}\rightarrow 2Fe_{2}O_{3}$

3.

$2H_{2}O_{2}\rightarrow 2H_{2}O +O_{2}$

4.

$NaHCO_{3}+HC_{2}H_{3}O_{2} \rightarrow NaC_{2}H_{3}O_{2}+H_{2}CO_{3}$

$H_{2}CO_{3}\rightarrow H_{2}O+CO_{2}$

$NaHCO_{3}+HC_{2}H_{3}O_{2}\rightarrow H_{2}O+CO_{2}+NaC_{2}H_{3}O_{2}$