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Balancing Combustion Reactions

Balancing Combustion Reactions

Assessment

Interactive Video

Chemistry

11th Grade

Practice Problem

Hard

Created by

Robert Springer

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When balancing a combustion reaction, what is the recommended order for balancing the atoms?

Hydrogen, Carbon, Oxygen

Carbon, Hydrogen, Oxygen

Oxygen, Carbon, Hydrogen

Hydrogen, Oxygen, Carbon

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the coefficients for the balanced combustion reaction of propane (C3H8) with oxygen (O2)?

1 C3H8 + 5 O2 → 3 CO2 + 4 H2O

2 C3H8 + 10 O2 → 6 CO2 + 8 H2O

1 C3H8 + 1 O2 → 3 CO2 + 4 H2O

1 C3H8 + 3 O2 → 3 CO2 + 4 H2O

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a chemical reaction, what is a limiting reactant?

The reactant that produces the greatest amount of product.

The reactant that is present in the largest quantity.

The reactant that is completely consumed and limits the amount of product formed.

The product formed from the reaction.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If oxygen is identified as the limiting reactant, what term describes the remaining reactant, propane?

Theoretical reactant

Actual reactant

Excess reactant

Limiting reactant

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given 2 moles of propane and 8 moles of oxygen gas reacting according to the balanced equation C3H8 + 5O2 → 3CO2 + 4H2O, which reactant is the limiting reactant?

Propane (C3H8)

Oxygen (O2)

Carbon Dioxide (CO2)

Water (H2O)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the theoretical yield of a product represent in a chemical reaction?

The actual amount of product obtained from an experiment.

The maximum amount of product that can be formed based on the stoichiometry of the balanced equation.

The amount of reactant left over after the reaction.

The percentage of product obtained compared to the maximum possible.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Based on the reaction with 2 moles of propane and 8 moles of oxygen, how many moles of carbon dioxide (CO2) can be theoretically formed? (Balanced equation: C3H8 + 5O2 → 3CO2 + 4H2O)

2 moles

4.8 moles

6 moles

8 moles

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