Perform the indicated calculation. You may use a calculator. Remember to round your answers according to the rules for significant figures.
25 267.55 km
- 15.022 km
25 252.53 km
25 252.00 km
25 250 km
25 km
2500 km

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?

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).