True or False: Gases have a definite shape and volume.

True

False

2. What happens to the kinetic energy of particles when a substance changes from a liquid to a solid?

Decreases

Stays the same

Increases

Which of the following is a correct and balanced equation showing the reaction of calcium and oxygen? (While several of the equations may be balanced, only one has the correct products and reactants as well as being correctly balanced.) A. a.

what is the molecular formula of a compound with the empirical formula of P2O3 and a gram molecular mass of 284 grams?

How are protons, electrons, and neutrons correctly compared

Charcoal and copper are black how do you distinguish

If 8.60 grams of methane gas (hint: remember the fuel for the bunsen burner) is in a 2.00 L container at 66oC, what is the pressure in the container?

If, at a given temperature, the equilibrium constant for the reaction H2 (g) Cl2 (g) 2HCl (g) is Kp, then the equilibrium constant for the reaction HCl (g) (1/2) H2 (g) (1/2) Cl2 (g) can be represented as:

The tank of an air compressor contains gas at normal atmospheric pressure (1atm). If the compressor motor pumps the equivalent of three extra tanks of air into the compressor tank, what will be the final pressure

Which atom has the largest number of neutrons? phosphorus-30 chlorine-37 potassium-39 argon-40 calcium-40?

A certain indicator has a color chart that shows that when the indicator is yellow, the solution is acidic. What is true about a solution that produces a yellow indicator?

The element hydrogen adom is made up of wich kinds of adams