Intestinal secretions have a high concentration of molecules. a.co2 and waterb. bicarbonatec. hydrogend. carbonic acid

Answer; option b) bicarbonate is the answer.

Explanation: secretion of bicarbonate is a psylogic function of the gastrointestinal Tracts

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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