Free Printable 3 Quarter EOM Review CP

Worksheets

3 Quarter EOM Review CP

Total questions: 26

Worksheet time: 59mins

Name

Class

Date

When does a chemical reaction stop?

When the lab is finished

When the excess reactant is used up

When the limiting reactant is used up

Chemical reactions never stop

What is a Excess Reagent?

amount you end with

what you run out of first

what you have left over

what you start with

If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the

theoretical yield

mole ratio

actual yield

percentage yield

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from 6 moles H₂?

4 moles Fe

6 moles Fe

9 moles Fe

2 moles Fe

9. Complete the equation for the percent yield of a chemical reaction:
Percent yield=(________)÷(________)×100%

actual yield; theoretical yield

theoretical yield; actual yield

How many moles of magnesium are in 3.01x10²² atoms of magnesium?

5.00x10⁴⁴ moles Mg

0.050 moles Mg

1.81x10⁴⁶ moles Mg

5 moles Mg

What is the mole ratio of oxygen gas to water?

2 H₂ + O₂ → 2 H₂O

1:2

3:4

4:3

Calculate the molar mass of propane

C₃H₈

13 g/mol

44 g/mol

99 g/mol

How many grams of magnesium chloride are produced if 4.67 moles of HCl react?

Mg + 2 HCl --> MgCl₂ + H₂

222 g MgCl₂

4.67 g MgCl₂

94 g MgCl₂

10.

You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.

SO2

SO3

SO4

11.

Which pair has the same empirical formula?

NaCrO₄ and Na₂Cr₂O₇

C₂H₄O₂ and C₆H₁₂O₆

C₃H₆O₃and C₂H₆O₂

CH₄ and C₂H₆

12.

What is the empirical formula for Br₂O₆

BrO₃

Br₆O₂

BrO

Br₂O₆

13.

Which one is an empirical formula?

H₂O₂

C₂H₆O₁₂

CaCl₂

N₂O₈

14.

What is the percent of Hydrogen in H₂O?

100%

11.21%

88.79%

2.00%

15.

What is the % Calcium in Ca(OH)₂

74.10%

45.91%

54.09%

100%

16.

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

CH₂O

C₂H₄O₂

C₄H₈O₄

C₆H₁₂O₆

17.

What is the formula for Boyle's Law?

P₁V₁=P₂V₂

P₁V₁/P₂V₂

P₁V₂=P₂V₁

P₁/V₁=P₂/V₂

18.

There are 135 L of gas in a container at a temperature of 260 ⁰C. If the gas was cooled until the volume decreased to 75 L, what would the temperature of the gas be?

26 K

96 K

496 K

296 K

19.

A student inflates a balloon with helium then places it in the freezer. The student should expect

the balloon's volume to increase

the balloon's volume to decrease

the balloon's moles to increase

the balloon's moles to decrease

20.

The initial volume of a gas at a pressure of 3.2 atm is 2.9 L. What will the volume be if the pressure is increased to 4.0 atm?

23 L

43 L

2.3 L

33 L

21.

100 degrees Celsius is equal to _______ Kelvin.

0 K

273 K

173 K

373 K

22.

In order to convert to Kelvin, you add ______ to the Celsius measurement.

372

273

237

732

23.

Which of the following would increase the (gas) pressure of a system?

Increase the Temperature

Pump in more gas

Decrease the volume

All of these

24.

What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C?

0.9 atm

2.1 atm

1.6 atm

3.4 atm

25.

How many of each type of atom are in Ca(OH)2?

(a) Ca

(b) O

2 (c)

(d) atoms total

Choose from the below words

26.

How many of each type of atom are in Na2SO4?

(a) Na

(b) S

(d) atoms total

Choose from the below words

100 %

3 Quarter EOM Review CP

Total questions: 26

Worksheet time: 59mins

Similar Resources on Wayground