Classify each of the following reactions when only the reactants are given and fill in the products. explain your answer for brainliest.

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Can someone me with questions 12 and 13 plz.

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?