Question

Which is a balanced chemical equation?

A. C7H16 + 5O2 +6CO2 + 4H2O
B. C7H16 + 11O2 → 7CO2 + 8H2O
C. C7H16 + 14O2 → 7CO2 +5H2O
D. C7H16 + 22O2 → 14CO2 + 16H2O

Answer 1

B. C7H16 + 11O2 → 7CO2 + 8H2O

Step-by-step explanation:

Answer 2

B. C7H16 + 11O2 → 7CO2 + 8H2O

Step-by-step explanation:

• In a balanced chemical equation, the number of atoms of each element is equal on both sides of the equation.

• In this case, the balanced chemical equation is;

C7H16 + 11O2 → 7CO2 + 8H2O

Because, it has 7 carbon atoms, 16 hydrogen atoms and 22 oxygen atoms on each side of the equation.

• When an equation is balanced it obeys the law of conservation of mass such that the mass of reactants will be equal to the mass of products.