Mixtures are two or more substances that are not chemically combined. which of the following statements is true about the mixture? cranberry juice is a homogeneous mixture. pepsi is a heterogeneous mixture oatmeal with raisins is a homogeneous mixture. milk is a pure substance, not a mixture

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?