1. Introduction to Chemistry Review Session
Mrs. Rogers

2. What is the proper name of the lab equipment shown above?
A. crucible
B. boiling dish
C. evaporating dish
D. flask

3. The lab equipment above is called a/an:
A. forceps
B. scoopula
C. stirring rod
D. metal strip

4. In this period of the table, the element whose valence electron(s) have the greatest ionization energy is:
a. Aluminum c. Argon
b. Chlorine d. Sodium

5. Which element is the largest?
a. Aluminum c. Argon
b. Chlorine d. Sodium

6. In this period of the table, the element with the greatest electronegativity is:
a. Sodium c. Argon
b. Aluminum d. Chlorine

7. The valence electrons in this column:
a. Are easily lost to form a cation
b. Are easily gained to form an anion
c. Are easily lost to form an anion
d. Are easily gained to form a cation

8. A positively charged particle found in the nucleus is called:
A. electron
B. neutron
C. proton
D. positron

9. Cathode rays are composed of particles that are now known as:
A. positrons
B. neutrons
C. protons
D. electrons

10. Rutherford called the region that deflected alpha particles:
A. an electron
B. a positrons
C. a nucleus
D. a quark

11. How many particles are in 1 mol of carbon?
B x 1023 C
D. 12

12. An isotope of fluorine has a mass number of 19 and an atomic number of 9. How many neutrons are in this atom?
A. 19
B. 10
C. 9
D. 28

13. Lithium, the first element in Group 1, has an atomic number of 3
Lithium, the first element in Group 1, has an atomic number of 3. The second element in this group has an atomic number of:
A. 4
B. 10
C. 11
D. 18

14. The most distinctive property of the Nobel Gases is that they are:
A. metallic
B. largely unreactive
C. metalloid
D. radioactive

15. Mercury is located in which group of the Periodic Table?
A. alkaline earth metals
B. non-metals
C. transition metals
D. lanthanides

16. How many milliliters are there in 3.4 liters? There are 1000 mL in 1 L.

17. Convert 45,700 into scientific notation.
4.57 x 104

18. Convert 7.121 x 109 into expanded form.
7,121,000,000

19. Convert 25 yards into feet. There are 3 feet in a yard.

20. Convert 0. 09 miles to inches
Convert 0.09 miles to inches. There are 36 inches in a yard and 1760 yards in a mile.
inches

21. What is the molar mass of (NH4)2SO4?
g/mol

22. How many mols are in 30 grams of Sodium?
1.305 mol Na

23. How many grams are in 2 mols of NaCl?
grams NaCl

24. How many mols are in 98.3 grams of aluminum hydroxide, Al(OH)3?
1.26 mols of aluminum hydroxide

25. How many molecules are there in 24 grams of FeF3?
1.281 x 1023 molecules of FeF3

26. Please show your work! How many molecules are there in 230 grams of CoCl2?

27. Please describe in your own words (without showing calculations), how to find the answer to the following problem:
How many atoms are there in 250 grams of NH4OH?