Question

Which equation illustrates the principle of conservation of mass?(1 point)
Responses

C + O2 → C2O
C + O 2 → C 2 O

H2SO4 + Zn → 4ZnSO + H2
H 2 SO 4 + Zn → 4ZnSO + H 2

2H2 + O2 → 2H2O
2H 2 + O 2 → 2H 2 O

Mg + S → MgS2

Answer 1

The equation that illustrates the principle of conservation of mass is:

**2H2 + O2 → 2H2O**

This equation shows that the number of atoms of each element is the same on both sides of the reaction, which exemplifies the conservation of mass.