How does the composition of a water molecule affect its charge? it makes the molecule a negative ion. it makes the molecule a positive ion. it makes the molecule polar. it makes the molecule nonpolar.

The correct answer is it makes the molecule polar.

Explanation:

An ion is formed when atom looses or gain electron.

If an atom gains electrons, it will carry negative charge and form an anion.

If an atom looses electrons, it will carry positive charge and forms a cation.

A polar compound is defined as the compound which is formed whenever there is difference in the electronegativity values between the elements.

A non-polar compound is defined as the compound which is formed when there is no difference in the electronegativity values between the elements.

Chemical formula for water is . It is formed by the combination of hydrogen and oxygen atoms.

Oxygen is more electronegative atom than hydrogen atom and thus, oxygen atom will carry partial negative charge on it and hydrogen will carry partial positive charge on it. Thus, creating a dipole.

Hence, the correct answer is it makes the molecule polar.

d statement

explanation:

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.