Classify each of the following as an element, compound, homogeneous mixture, or heterogeneous mixture. (4 points)
a. Italian salad dressing
b. Nail polish
c. Propane gas
d. Calcium chloride pellets
3. Identify the name of the element based on the descriptions below. (3 points)
a. An element found in group 4A and period 5.
b. The alkaline earth metal with the greatest number of protons.
c. A metalloid from group 3A.
4. Classify each of the following chemical formulas as an ionic compound, covalent compound, hydrate, binary acid, oxoacid or organic. Name each compound. (15 points)
a. CrSO4 * 8H2O
b. P4Se6