How does oxygen combine with hydrogen?

answer:

when molecular hydrogen (h2) and oxygen (o2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide. in this oxidation, a molecule of hydrogen gas is ionized to two electrons and two protons.

explanation:

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

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b. examine and describe cells