Question

How does the law of conservation of mass apply to this: C2H4+O2→ 2H2O+2CO2

A. Only the oxygen needs to be balanced. There are equal numbers of hydrogen and carbon
b Each element needs to be balanced.
C. The equation needs to be balanced. There are fewer oxygen atoms in the equation than hydrogen or carbon.
D. e law of conservation of mass has already been applied. There is an equal number of each element on both sides of the equation.

Answer 1

Add a coefficient of 3 in front of the 02 to balance the 6 O atoms in the products

Step-by-step explanation:

Add a coefficient of 3 in front of the 02 to balance the 6 O atoms in the products