Answer:
The answers to your questions are given below
Explanation:
A. Fe + O2 —> Fe2O3
4Fe + 3O2 —> 2Fe2O3
The coefficients are 4, 3, 2
B. H2 + Cl2 —> HCl
H2 + Cl2 —> 2HCl
The coefficients are 1, 1, 2
C. Ag + H2S —> Ag2S + H2
2Ag + H2S —> Ag2S + H2
The coefficients are 2, 1, 1, 1
D. CH4 + O2 —> CO2 + H2O
CH4 + 2O2 —> CO2 + 2H2O
The coefficients are 1, 2, 1, 2
E. HgO —> Hg + O2
2HgO —> 2Hg + O2
The coefficients are 2, 2, 1
F. Co + H2O —> Co2O3 + H2
2Co + 3H2O —> Co2O3 + 3H2
The coefficients are 2, 3, 1, 3
