Chemistry Final
Name:
Significant Figures: Circle the letter of the answer, 1 point each
1. How many significant figures does this number have: 100,000?
a. 1
b. 6
c. 3
d. 2
2. How many significant figures does this number have: 2.34?
a. 1
b. 2
c. 3
d. 4
3. How many significant figures does this number have: 234,567?
a. 3
b. 6
c. 5
d. 2
States of Matter: Circle the letter of the answer, 1 point each
4. What are the 3 states of matter?
a. Solid, Liquid, Gas
b. Fire, Air, Water
c. Sun, Earth, Moon
d. Sublimation, Condensation, Evaporation
5. Which of the following describes particle motion in a liquid?
a. Far apart and moving fast
b. No motion
c. Close together and vibrating in place
d. Semi-far apart and moving quickly
6. Which of the states of matter has a definite shape and a definite volume?
a. Solid
b. Liquid
c. Gas
7. A change from one state of matter to another is referred to as a?
a. A switch
b. A transition
c. A change
d. A phase change
8. Which state of matter has a indefinite shape and an indefinite volume?
a. Gas
b. Solid
c. Liquid
Physical and Chemical Changes: Circle the letter of the answer, 1 point each
9. Which of the following describes a physical change?
a. A change in the size, shape, or state of matter of a substance
b. A change in color
c. A new substance being formed
10. Which of the following describes a chemical change?
a. A change in state
b. A new substance forming
c. Smelling an odor
11. Which of the following is an example of a chemical change?
a. Making fruit salad
b. Ice Melting
c. Both
d. Neither
12. Which of the following is an indicator of a physical change?
a. Cutting
b. A gas forming
c. A change in shape
d. Both A and C
13. You mix sugar into a cup of coffee. What kind of change is this?
a. Chemical
b. Physical
Heating Curve: Circle the letter of the answer, 1 point each
14. What is the melting point of this substance?
a. 20 degrees
b. 40 degrees
c. 0 degrees
d. 100 degrees
15. What is the vaporization point of this substance?
a. 20 degrees
b. 40 degrees
c. 0 degrees
d. 100 degrees
16. What is the freezing point of this substance?
a. 20 degrees
b. 40 degrees
c. 0 degrees
d. 100 degrees
Atoms
17. Fill in the table below
Particle
Location in the
atom
Proton
Neutron
Electron
Charge
Mass
18. How do you calculate the mass number of an atom?
a. Add protons and neutrons together
b. Subtract protons from neutrons
c. Multiply protons and neutrons together
19. How do you determine the identity of an atom?
a. The number of protons
b. The number of neutrons
c. The number of electrons
d. Its appearance
20. What is the name given to the number of protons in an atom?
a. Atomic Number
b. Mass number
c. Total Number
d. Identification Number
e. False
21. Fill in the table below
Atom
Atomic
Mass
Number of
Number
Number
Protons
Number of
Neutrons
Number
of
Electrons
Si
Hg
At
Periodic Table
22. On a periodic table, what are the groups?
a. The columns
b. The rows
c. The diagonals
23. On a periodic table, what are the periods?
a. The columns
b. The rows
c. The diagonals
24. Write the name of the element on the line next to the group and period where it is located.
Group 6, Period 6______________________________
Group 10, Period 4______________________________
Group 16, Period 3______________________________
Group 9, Period 5______________________________
Group 5, Period 6______________________________
25. What are the elements in group 18 called?
a. Alkali Metals
b. Halogens
c. Noble Gases
d. Transition Metals
26. What are the elements in group 1 called?
a. Alkali Metals
b. Halogens
c. Noble Gases
d. Transition Metals
Bonding and Naming: Circle the letter of the answer, 1 point each
27. Which of the following describes an ionic bond?
a. Solid, Liquid, Gas
b. Fire, Air, Water
c. Sun, Earth, Moon
d. Sublimation, Condensation, Evaporation
28. Which of the following describes an covalent bond?
a. Far apart and moving fast
b. No motion
c. Close together and vibrating in place
d. Semi-far apart and moving quickly
29. Write whether the compound is an ionic or covalent bond.
NaCl______________________________
NO2______________________________
AlF______________________________
30. Name the following compounds.
NaCl______________________________
N2O______________________________
BiCl______________________________
31. Write the compounds that go along with the name.
Silver Fluoride______________________________
Strontium Bromide______________________________
Lithium Sulfide______________________________
Electron Configurations: Write out the electron orbital diagram for the element, 1 point
each
Sulfur:
Neon:
Calcium:
Reactions: Circle the letter of the answer, 1 point each
32. Which of the following describes a exothermic reaction?
a. A reaction that results in a increase in heat
b. A reaction that results in a decrease in heat
c. A reaction that is very explosive
33. Which of the following increases the rate of a reaction?
a. Surface Area
b. Concentration
c. Catalysts
d. All of the Above
34. What pH value classifies a substance as an acid?
a. Below 7
b. 7
c. Above 7
35. Which of the following describes the process of fusion?
a. Two atoms splitting apart
b. Two atoms coming together
c. Two elements bonded together
d. Both A and C
36. Which if the following describes a half-life?
a. A compound splitting in half
b. Half the amount of time an element has existed
c. The amount of time it takes for a radioactive element to decay by half
d. The amount of time it takes for a compound to split in half
Molar Conversions and Stoichiometry: Write out your answer, 2 points each
37. Convert 100g of sodium bromide (NaBr) to moles.
38. Convert 2.8 moles of calcium chloride (CaCl) to grams.
39. Silver Nitrate reacts with sodium chloride to form sodium nitrate and silver chloride.
a. Balance the equation
b. What is the limiting reactant?
40. Copper reacts with nitric acid to form copper nitrate and nitrogen dioxide.
a. Balance the equation
b. If you have 38g of copper, how much nitrogen dioxide will be produced?