Unit 1
Unit 2
Unit 3 pt.1
Unit 3 pt.2
Unit 4
100

How many sig figs are in the following measurements?

1.) 6.0304

2.) 0.00345016

3.) 75000

1.) 5

2.) 6

3.) 2

100

Which two groups on the periodic table are the most reactive?

Alkaline metals and Halogens

100

What are the two common transition metals and their charges to memorize?


1.) Silver, Ag+

2.) Zinc, Zn+2

100

Which law states that the higher the charge, the shorter and stronger the attraction is?

Coulomb's Law

100

What are the 5 types of chemical equations?

Synthesis, Decomposition, Single Displacement, Double Displacement, and Combustion

200

What is the volume of a chunk of gold with a mass of 246 g and a density of 30.4 g/cm3?

8.09 cm3

200

Consider the following pairs, determine whether the pairs are isotopes.

1.) 38K and 39K

2.) 1H and 2H

3.) 11B and 11C


1.) Yes

2.) Yes

3.) No

200

What are the seven diatomic elements?

Hydrogen, nitrogen, oxygen, fluorine, bromine, chlorine, iodine

200

What is the molar mass of Ammonium Dichromate? Round to the nearest whole number.

252 g/mol

200

Will the following reactions occur?

1.) I+ 2NaCl ---> Cl2 + 2NaI

2.) 3CuSO+ Fe3(PO4)--->Cu3(PO4)2 + 3FeSO4

3.) Na2SO4 + BaCl---> 2NaCl + BaSO4

1.) No

2.) Yes

3.) Yes

300

0.005421 km = _ cm?

542.1 cm

300

Carbon has three isotopes. 98.9% of Carbon atoms have 6 neutrons, 1.09% of Carbon atoms have 7 neutrons, and 0.01% of Carbon atoms have 8 neutrons. Determine the average atomic mass of this element (Carbon's atomic number = 6). Round to the nearest thousandths.

12.011 amu

300

Give the symbol and charges for the following polyatomic ions.

1.) Hydroxide

2.) Bicarbonate

3.) Hydronium

4.) Oxalate

5.) Acetate

1.) OH-

2.) HCO3-

3.) H3O+

4.)C2O4-2

5.) C2H3O2-

300

Given the compound name, write the formula.

1.) Chromium (II) Nitride

2.) Magnesium Permanganate

3.) Nitrogen Trifluoride

1.) Cr3N2

2.) Mg(MnO4)2

3.) NF3

300

Given the following reaction:

4A + 5B ---> C + 3D

If 5.0 moles of A react with 4 moles of B, how many moles of C will be produced?

0.8 mols

400

0.016 km/s = _ cm/hr?

58,000,000 cm/hr

400

Naturally occurring oxygen is composed of three isotopes: 99.757% O-16 (mass 15.9949 amu), 0.038% O-17 (mass 16.9991 amu), and the third with a percent abundance of 0.205%. Determine the amu of the third isotope given that the oxygen's atomic mass is equal to 16 amu. Round to nearest thousandths.

18.297 amu

400

What are 5 properties you would expect for the compound PCl3?

Melts at low temperatures, doesn't dissolve in water, doesn't conduct electricity, soft, and odorous.

400

You have 21.4 g of nitric acid, HNO₃. How many moles of acid do you have? How many molecules are in this sample? How much of each element do you have in this sample?

Moles = 0.340 mol

Molecules = 2.04 x 1023 or 2.04e23

Hydrogen = 0.342 g

Nitrogen = 4.76 g

Oxygen = 16.3

400

Predict the products of the following chemical reactions as well as balancing the equations. State the type of chemical reaction and the sum of the coefficients.

1.) Pb(NO3)2 + KOH ---> ???

2.) C12H22O11 + O2 ---> ???

3.) Cl2 + MgI---> ???

1.) Pb(NO3)2 + 2KOH ---> 2Pb(OH)2 + KNO3; Double Displacement, 6

2.) C12H22O11 + 12O2 ---> 12CO2 + 11H2O; Combustion, 36

3.) Cl2 + MgI2---> MgCl+ I2; Single Displacement, 4


500

A bag of candy has a serving size of 50 pieces (45g), 235 g calories per serving, and 15 total fat per serving. How many candies are in a 28-ounce bag? (1 ounce = 28.35 grams). Round to nearest whole number.

881 candies

500

Magnesium has three naturally occurring isotopes. One has 12 neutrons with a percent abundance of 78.99%, another has 13 neutrons, and the last has 14 neutrons. Determine the percent abundance of the other two isotopes (Magnesium's atomic mass = 24.30, atomic number = 12)

25M = 12.02%

26M = 8.99%

500

Name the following compounds.

1.) H3OCN

2.) Al4C3

3.) S2F10

4.) CoCl3

5.) C2H6O3

1.) Hydronium Cyanide

2.) Aluminum Carbide

3.) Disulfur Decafluoride

4.) Cobalt (III) Chloride

5.) Ammonium Acetate

500

Find the empirical formula of the compound that comprised of 40.0% Carbon, 6.7% Hydrogen, and 53.3% Oxygen.


CH2O

500

50g of Benzene (C6H6) is placed in a container with a 160g of Oxygen gas. After the reaction 30 grams of water was collected. Determine the limiting and excess reactant. What is the percent yield? Round to nearest hundredth.

Limiting: Benzene

Excess: Oxygen

Percent yield: 86.71%