1. 1. Sodium (Na) and Chlorine (Cl) have subatomic particles
1. Sodium (Na) and Chlorine (Cl) have subatomic particles. Which one would be involved in the formation of sodium chloride?
Protons
Neutrons
Nucleus
Electrons

2. 2. Which of the following elements has the most metallic properties?
A Ne and He
B Cu and Co
C K and Ca
D Ni and Zn

3. A They are highly reactive metals.
3. Which statement best describes the relationship between Nitrogen (N) and Phosphorous (P)?
A They are highly reactive metals.
B The are less-reactive metals.
C They are highly reactive non- metals.
D They are almost non-reactive gases.

4. Calcium (Ca) Silver (Ag) Neon (Ne) Cobalt (Co)
4. The element potassium (K) readily reacts with oxygen (O). Which of the following elements would react in a similar way?
Calcium (Ca)
Silver (Ag)
Neon (Ne)
Cobalt (Co)

5. 5. A candle is burning, which statement best describes a physical change?
The flame causes the wax to melt.
The flame gives off black smoke.
The flame produces heat.
The flame releases light.

6. 6. In the following equation what are the reactants
6. In the following equation what are the reactants? Hydrogen + Oxygen Water
A. Hydrogen
B. Oxygen
C. Hydrogen and Oxygen
D. Water

7. 7. Which statement best describes the properties of the compound water?
The properties are the same as the elements that made it.
The properties are similar to the elements that made it.
The properties are different than the elements that made it.
The properties are related to the elements that made it.

8. 8. How does the mass of a product compare to the mass a reactant?
A The mass of the product is different than the combined masses of the reactants.
B The mass of the product is equal to the combined masses of the reactants.
C The mass of the product is greater than the combined masses of the reactants.
D The mass of the product is less than the combined masses of the reactants.

9. 9. I did an experiment and found that the pH of water was a 7
9. I did an experiment and found that the pH of water was a 7. How would you classify water based on that information?
A Acid
B Base
C Neutral
D Reactive

10. A Acid B Base C Neutral D Reactive
10. What if I have a substance that has a pH of 4? How would you classify that sample?
A Acid
B Base
C Neutral
D Reactive

11. 11. Compare the reactivity of Potassium (K) and Helium (He)
11.Compare the reactivity of Potassium (K) and Helium (He). Be sure to include the following:
The locations of the elements on the periodic table.
Whether the elements are classified as metals or non-metals.