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100

What three laws make up the combined gas laws?

Boyles, Charles, Gay-Lussac

100

Write the formula for Magnesium Carbonate

MgCO3

100

A solution that contains 40 grams of NaCl at 20 C is described as:

Supersaturated

100

What type of reaction is shown below:

Zn + H2SO4 ----> ZnSO4 + H2

Single Displacement

100

Does the following make an acid or base when placed in water: NO3

Acid

200

How many liters are in one mole?

22.4 L

200

What is the name of Fe2(SO3)3

Iron III Sulfite

200

What kind of molecule is the following:

            H                       

Cl         C       Br

            H

Nonpolar

200
What is the % of magnesium in magnesium phosphate?

27.7%

200

Write the abbreviated EC and Lewis Dot for Ba.

[Xe] 6s2

* Ba *

300

In a tank with constant volume the temperature changes from 25 C to 45 C. If the initial pressure inside the tank was 195 kPa, what is the final pressure?

208.1 kPa

300

Write the electron configuration and orbital fill for Cu.

1s2 2s2 2p6 3s2 3p6 4s1 3d10

300

If you dissolved 70 grams of NH4Cl in 90 C of 333 mL of water, what is the % solution?

17.36%

300

If you have 4.5 x 1024 atoms of uranium, how many grams would you have?

1779.3 grams U

300

How many molecules are in 0.0015 grams of sodium phosphate? (Na3PO4)

5.509 x 1018 molecules

400

A refrigeration system contains 575 mL of a gas at 22 C and 1.25 atm. The gas is compressed until it has a pressure of 2.00 atm and a temperature of -6 C. What is the new volume?

325 mL or 0.325 L

400

Write the atomic number, mass #, valence electrons, protons, neutrons, total electrons, and family name for Cl-37

17

37

7

17

20

17

halogens

400

If 3.4 moles of KBr dissolved in 400 mL of solution, what is the molarity?

8.5 M

400

Write a synthesis equation for Iron III reacting with Oxygen gas.

4 Fe + 3O2 ----> 2 Fe2O3

400

Complete and balance


C4H10 + O2 -->

2 C4H10 + 13 O2 --> 8 CO2 + 10 H2O

500

What is the volume of a sample of 0.6 moles at 106.33 kPa and 35 C?

14.45 L

500

A solution of KHCO3 at 2.869 M is diluted from its original volume of 0.0381 L by adding 0.6919 L. What is the resulting concentration of this solution?

Correct answer is 0.15 M

500

1. How many mL of 0.03 M barium hydroxide (Ba(OH)2) would be necessary to neutralize 100 mL of 0.5 M nitric acid (HNO3)?

833 mL

500

Using the equation:

CO2 + 2 LiOH --> Li2CO3 + H2O

If you begin with 100 grams of LiOH, how many grams of CO2 would you have?

91.88 g CO2

500

If you begin with 65.3 liters of oxygen gas, how many grams of water would you be able to make?

C3H8 + 5O2 --> 3CO2 + 4 H2O

42.03 g