Practice 2.2 Name ____________________________________
1. Use the following words to fill in the diagram on the right
2. Write the formula for a molecule made of the following elements
a. Hydrogen peroxide – 2 hydrogen and 2 oxygen
b. Epsom salts– 1 magnesium, 1 sulfur, 4 oxygen
c. Ammonium Dichromate– 2 nitrogen, 8 hydrogen, 2 chromium, and 7 oxygen
d. Octane– 8 carbon, 18 hydrogen
3. Identify each of the following as a gas, liquid, or solid.
______________________ a. The particles are closely packed together, but they can still slide past each other.
______________________ b. The particles are in a constant state of motion and rarely stick together.
______________________ c. The particles are locked in fixed positions.
4. Draw a picture of how the molecules are arranged in a solid, liquid, and gas.