213k views
3 votes
Consider the equation:

Ca+O2→CaO

What needs to be done in order to balance the equation?


Place a 2 in front of the Ca and the CaO.

Place a 2 in front of the O2 and the CaO.

Place a 2 in front of the CaO only.

Place a 2 only in front of the Ca.

User Daniel Li
by
4.8k points

1 Answer

4 votes
the first one would be the best answer
User Yasar Can Clngr
by
4.1k points