What happens to a confined gas at a constant temperature when the volume is reduced to 1/2

A hot air balloon has an air vent that keeps the air pressure inside and outside the same. Allen observes that a hot air balloon rises up when the gas molecules inside it are heated.

Insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. A bottle contains 525 mL of insulin at a concentration of 50.0 mg/mL. What is the total mass of insulin in the bottle?

12.0 L of gas in a piston at a pressure of 2.00 atm are compressed until the volume is 7.00 L. What is the new pressure inside the piston?

Can someone explain quantum number sets?

What is the molar mass of carbon (C) ? 6.00 grams/mole 12.01 grams/mole 6.02 x 1023 grams/mole 1.0 gram/12.011 moles

For an endothermic reaction at equilibrium, the addition of a catalyst Group of answer choices causes no shift causes a shift to the right causes a shift to the left makes it an exothermic process

The atomic number of an element best corresponds to which of the following? O The mass of an atom of that element. O The number of electrons orbiting the nucleus of an atom of that element.

If a dinosaur once lived in mexico, and i now live in arkansas, can i be drinking the same water the dinosaur did?

Dough to which potassium bromate has been added rises better, producing a lighter, larger volume loaf.

Each enzyme has an optimal temperature and pH that it works best in. If enzyme ABC works best at pH 7, but ABC is in a cell with a pH of 9, will it catalyze more or less reactions?