Question

Examine the chemical reaction. C3H8+O2 -->4H2O+3CO2 What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both sides of the reaction equation?
3
5
7
10

Answer 1

Examine the chemical reaction. C3H8+O2 -->4H2O+3CO2 What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both sides of the reaction equation?

3

5

7

10

Answer 2

Answer:

5 should added on the reactant side

Explanation:

according to the law of conservation of mass. the mass of reactant is equal to the mass of product

in the eqn 4*1=4&3*2=6.4+6 =10atom of oxygen

so on *5 in reactant side the mass of atom of O will be =