Which of the following preparation of salt is incorrect? * Acid + alkali
Acid + hydrogen
Acid + carbonate
Acid + metal oxide

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?

What element has similar physical and chemical properties as boron.

What does a numerical subscript following an element in a chemical formula mean?