Consider the equation:
Ca+O2→CaO
What needs to be done in order to balance the equation?
Responses
Place a 2 in front of the Ca and the CaO.
Place a 2 in front of the , Upper case C lower case a, and the , Upper case C lower case a upper case O, .
Place a 2 in front of the CaO only.
Place a 2 in front of the , Upper case C lower case a upper case O, only.
Place a 2 only in front of the Ca.
Place a 2 only in front of the , Upper case C lower case a, .
Place a 2 in front of the O2 and the CaO.