Explain why two oxygen atoms bond to a carbon atom to make a stable molecule of a carbon dioxide?

The answer to your question is:

Explanation:

When carbon attached to oxygen, they form covalent bonds, in these kind of bonds, atoms share electrons to acquire stability.

Atoms acquire stability when they have 8 electrons in their outermost shell.

When carbon share electrons with oxygen they acquire 8 electrons and they are stable.

See the picture below

Red is carbon and blue oxygen

d. the weight of the book