What is pressure?

O

A. The force of gas molecules hitting their container

O

B. The space occupied by gas molecules moving around

O

C. The heat required to change the temperature of a gas

O

D. The mixing of gas molecules due to random motion

A chemist dissolved crystals of an unknown substance into water at room temperature. He found that 33 g of the substance can be dissolved into 100 mL of water. What property of the unknown substance was the chemist most likely investigating?

The lines in an element's atomic spectrum result from electron spins going in opposite directions. energy that is spread out among an atom's electrons. electrons moving from a lower to a higher energy level.

What is a chemistry?

Polar molecules have a partial positive charge on one side and a partial negative charge on the other side, a separation of charge called a dipole. Which of the following molecules has this kind of a dipole? a. IonicB. Covalent

3 Reasons why cloning is BAD

Examples of gravitational potential energy.

What is a safety rule while using glass beakers

if a solution is saturated, how does the rate of dissolution of a solute compare with it's rate of crystallization?

How are all sounds made?

What is a substance formed when two or more elements combine and lose their distinct properties