A sample of magnesium is heated in a boiling water bath to 100.0°C. The sample is then placed into a calorimeter with 7.06 g of water. The initial temperature of the water in the calorimeter is 24.9°C and the final temperature is 27.0°C. What is the mass of the magnesium sample?

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?