Question

State the number of atoms of each element in the reactants and in the products.2C2H6(g)+7O2(g) ⟶Δ 4CO2(g)+6H2O(g)P4O10(s)+6H2O(l) → 4H3PO4(aq)

Answer 1

In this question, we have two reactions, and we have to find the number of atoms of reactants and products involved in this reactions:

2 C2H6 + 7 O2 -> 4 CO2 + 6 H2O

In this case, we have

Reactants:

4 Carbons

12 Hydrogens

14 Oxygens

Since the reaction is balanced, the number of atoms on both reactants and products side are the same

P4O10 + 6 H2O -> 4 H3PO4

In this case, we have

Reactants:

4 Phosphorus

16 Oxygens

12 Hydrogens

Since the reaction is balanced, the number of atoms on both reactants and products side are the same