Gaseous hydrogen burns in the presence of oxygen to form water: 2H2 + O2 + 2H2O + energy
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Which molecule is oxidized and what kind of bond is formed?

Hydrogen is oxidized

Polar covalent bond

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.