Question

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Answer 1

Answer:

question is given

Explanation:

N2 + 3H2 = N2 + H6

so this will combine and make 2NH3

CH4 +2O2 = CH4O4

combining, CO2 will use 2 of oxygen, and carbon, and left is H4 and O2

H4 and O2 combining will become 2H2O which is water two molecule

Ca(Calcium) + 2Hcl(hydrochloric acid) = CaCl2 + H2

this: Ca is equal on RHS and LHS, There are two molecules of H and Cl

So thats is !

The two more can be solved with the same way