Question

Calcium +oxygen in chemicals formulars

Answer 1

CaO

Step-by-step explanation:

Calcium has 2+ charge

Oxygen has 2- charge

Answer 2

Chemicals formula of calcium + oxygen :

`\: \: \: \: \: \: \: \: \: \red{ \star}\underline{ \underline{ \boxed{Ca + O_2 }}}`