Answer:
2
Explanation:
In calcium oxide, the calcium is electropositive in nature and to fulfil its octet, the calcium atoms lose two electrons to form the calcium cations whose valency is 2, hence the corresponding anion, i.e. the oxide anion must also have valency 2 to balance the positive charge on the calcium cation.
Hope this helps... 0_0
I think it is B, but i am not sure
Answer:
a chemical reaction
Explanation:
The fact that you are combining two different elements together makes this a chemical reaction. (hope that helps)
Static electricity jrbfbfjfbfbbfbfjfngbffjfbfbffjnfnfnf