Which acid-base buffer is most crucial to maintaining homeostasis within the human body?

a. a mixture of carbonic acid and bicarbonate
b. a mixture of nitric acid and nitrate
c. a mixture of acetic acid and acetate
d. a mixture of hydrochloric acid and chloride

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?