The sharing of electrons between the oxygen atom and two hydrogen atoms form a

The answer is covalent bond

Explanation:

when  oxygen atom and two hydrogen atoms are combined, water molecule is formed according to the equation;

2H2 + O2 ==> 2H2O

Water is a covalent compound.

A covalent bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full outer shell, corresponding to a stable electronic configuration.

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the answer is barium and copper bromide