Review

Chapter 1

100

Rank the following prefixes in order of increasing size of the number they represent: centi-, giga-, nano-, and kilo-.

nano, centi, kilo, giga

200

 Express each of the following temperatures in kelvins: 

(a) −10.°C

(b) 0.00°C

(c) 280.°C

a) 263 K

b) 273K

c) 553K

300

 Express each of the following numbers in scientific notation: 

(a) 62.13 

(b) 0.000414

(c) 0.0000051

(d) 871,000,000 

(e) 9100

a) 6.213x10¹

b) 4.14x10^-4

c) 5.1x10^-6

d) 8.71x10⁸

e)9.1x10³

400

 3.47 × 10^-6 g to µg

3.47 µg

500

If a vehicle is traveling 92 m/s, what is its velocity in miles per hour? (0.62 miles = 1.00 km)

205.344 mi/hr

Chapter 2

100

 Define the term isotope

same # of protons; different # of electrons

200

 What is the difference between an ionic bond and a covalent bond

Ionic = transfer of electrons

Covalent =  sharing of electrons

300

 Name the following covalent compounds: 

(a) N2O5

(b) S2Cl2 

(c) NBr3

(d) P4O10

a) dinitrogen pentoxide

b) disulfur dicholoride

c) mononitrogen tribormide

d) tetraphosphorus decoxide

400

 Write the formula units of the following ionic compounds: 

(a) copper(II) sulfide

(b) barium chloride

(c) iron(III) nitride 

(d) titanium(IV) bromide

a) CuS

b) BaCl2

c) FeN

d)TiBr4

500

The element gallium, used in gallium arsenide semiconductors, has an atomic mass of 69.72 amu. There are only two isotopes of gallium, 69Ga with a mass of 68.9257 amu and 71Ga with a mass of 70.9249 amu. What are the isotopic abundances of gallium?

69Ga = 60.3%

71Ga = 39.7%

Chapter 3

100

Balance the following equation:

CS2 + Cl2  →  CCl4 + S2Cl2

CS2 + 3Cl2  →  CCl4 + S2Cl2

200

 Which symbols are used to indicate solids, liquids, gases, and aqueous solutions in chemical equations?

s; l; g; aq

300

Find the net ionic and spectator ions for the following reaction:

AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)

Ag+ (aq) + Cl- (aq) --> AgCl (s)

Spectators: Na+ and NO3-

400

93 g CO2

convert to mols

2.11 mol CO2

500

72.7% Sb, 28.3% S

Write the empirical formula

Sb2S3

Chapter 4

100

Define limiting reactant

The reactant that is fully used up first

200

If 3.4 mol Al and 6.2 mol Fe2O3 are mixed, what is the limiting reactant?  

2 Al + Fe2O3 → Al2O3 + 2 Fe

Al

300

How many grams of Fe are produced?

2 Al + Fe2O3 → Al2O3 + 2 Fe

189.89 g Fe

400

When performing a recovery of copper sulfate in the lab a student recovered 1.65 g from the original 4.30 g. What is their percent error?

38.37% recovered

Chapter 5

100

Convert 1.69 atm to mmHg

1284.4 mmHg

200

A gas cylinder has a volume of 5.6 L at a pressure of 1 atm. According to boyles law, what should happen to my volume if the pressure is increased to 5 atm? (increase or decrease)

decrease

300

What is the pressure occupied by 0.150 mol of nitrogen gas at 27°C occupying a volume of 2.00 L

1.85 atm

400

There are 6 mol of NO2 (g) at STP. How many liters of gas are there?

134.4 L

500

Which of the following gases will diffuse at the fastest rate?

He, Cl2, CO2, H2, O2

**Bonus: rank from slowest to fastest

H2

**Cl2, CO2, O2, He, H2