Which of the following is not an indication of a chemical reaction?

A) a substance dissolves
B) formation of a precipitate
C) color change
D) the container gets cold

Which statement best explains the relationship between an area is geography and the temperature of its surface water

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

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?