15.) Solar energy, wind, and geothermal are what type of energy resource?

a.) Inexhaustible

b.) Inexpensive

c.) Nonrenewable

d.) Chemical

What are the similarities between liquids and gases?

If the pressure of a 2.00 L sample of gas is 50.0 kPa, what pressure does the gas exert if its volume is decreased to 20.0 mL? What is the new pressure?

What must be true of a disproportionate substance? It is composed of oxygen. It is both a reactant and a product. It has an oxidation number of 0. It gains and loses electrons.

What is the pH of a solution that results from the complete neutralization of an HCl solution with a KOH solution?

1. Explain what is in a buffer. Discuss the function of a buffer. How will pH change when small amounts of acids or bases are added to the buffer solution?

What do igneous rocks form from? (20pts!)

A gas at STP has a volume of 1.0 liter. If the pressure is doubled and the temperature remains constant, the new volume of the gas will be ... ?

Combustion analysis of toluene, a common organic solvent, gives 8.20 mg of co2 and 1.92 mg of h2o. if the compound contains only carbon and hydrogen, what is its empirical formula?

Why does the moon have phases? What are the four main phases of the moon? How long does it take to change from one to another?

How many atoms are in 1/2 mole of calcium