Answer:
The answer is "barium oxide".
Explanation:
Hello!
Let's solve this!
The compound is:
Beam
We can see that it is made up of Barium and Oxygen. We know that since it has oxygen it is an oxide.
It also has Barium and its only valence number is +2, so it is called "Barium Oxide"
The answer is "barium oxide".
