Question

What number should be substituted for the question mark to balance the equation and why is that the correct number?



C3H8 +?O2 → 3CO2 + 4H2O + heat
A.

The number 3 is needed to balance the equation. The right side of the equation shows 6 oxygen atoms, so the left side needs 3 O2.
B.
The number 4 is needed to balance the equation. The right side shows 4 oxygen atoms, so the left side needs 4 oxygen atoms.







C.

The number 5 is needed to balance the equ. The right side of the equation shows 10 oxygen atoms, so the left side

Answer 1

c