Can someone please check-over these to see if I got the correct answers?

Question

In the following questions, an unbalanced equation is given. Balance the equation. Then add up the coefficients on both sides of this properly balanced equation and identify the total. (My answer is in bold.)

∗ N₂ + H₂ → NH₃

A. 3, B. 5, C. 6, D. 7, E. 8

∗ C₃H₈ + O₂ → CO₂ + H₂O

A. 4, B. 8, C. 11, D. 13, E.15

∗ C₅H₁₂ + O₂ → CO₂ + H₂O

A. 4, B. 8, C. 12, D. 16, E. 20

∗ KNO₃ + H₂CO₃ → K₂CO₃ + HNO₃

A. 4, B. 6, C. 7, D. 8, E. 12

∗ Na₃PO₄ + HCL → NaCL + H₃PO₄

A. 4, B. 6, C. 7, D. 8, E. 12

∗ KClO₃ + P₄ → P₄O₁₀ + KCl

A. 4, B. 8, C. 14, D. 26, E. 30

∗ Hg (OH)₂ + H₃PO₄ → Hg₃(PO₄)₂ + H₂O

A. 4, B. 8, C. 12, D. 16, E. 20

∗ Fe + HC₂H₃O₂ → Fe(C₂H₃O₂)₃ + H₂

A. 4, B. 5, C. 6, D. 13, E. 26

∗ Al₂(CO₃)₃ + H₃PO₄ → AlPO₄ + CO₂ + H₂O

A. 5, B. 8, C. 9, D. 11, E. 13

Answer 1

Hello, Jesset,

Thanks for putting the effort into solving this question before posting it. Very nice.

It took me a while on two of the equations, but, YES. They were all correct.

Good job,

Bob