Balancing Combustion Reactions

Balancing Combustion Reactions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to balance a combustion reaction equation involving CH3CH3 and O2, resulting in carbon dioxide and water. It covers the process of balancing carbon, hydrogen, and oxygen atoms, using coefficients and fractions to achieve a balanced equation. The tutorial also discusses converting fractional coefficients to whole numbers for a complete and balanced chemical equation.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products of the combustion reaction involving CH3CH3 and O2?

Methane and water

Carbon monoxide and water

Carbon dioxide and water

Oxygen and hydrogen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can CH3CH3 be alternatively represented to simplify balancing?

C2H4

C2H6

CH4

C3H8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in balancing the given combustion equation?

Balance the entire equation at once

Balance the carbon atoms

Balance the hydrogen atoms

Balance the oxygen atoms

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing the carbon atoms, how many oxygen atoms are initially present on the product side?

Six

Five

Four

Three

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is used in front of H2O to balance the hydrogen atoms?

Four

Three

Two

Five

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What fraction is used to balance the oxygen atoms in the equation?

7/2

3/2

5/2

9/2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why might some teachers prefer whole number coefficients in a balanced equation?

It is easier to read

It is a standard practice

It simplifies calculations

It is more accurate

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