A student researches the use of a pressure cooker to cook foods quickly at temperatures above the normal boiling point of water. a. How could you use a particle model to describe why the pressure in a sealed pressure cooker increases as the water is heated.

Please write a body paragraph. Don't combine them I want two paragraphs.

b. What effect does the higher pressure have on the boiling point of water? Explain your reasoning.

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

The number at the end of an isotope’s name is the number.

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?