Balancing Chemical Equations

Balancing Chemical Equations

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Liam Anderson

FREE Resource

The video tutorial explains how to balance a chemical equation involving sulfur and oxygen to form sulfur trioxide. It begins by identifying the reactants and products, then demonstrates how to adjust coefficients to balance the number of atoms on both sides of the equation. The tutorial emphasizes the importance of converting odd numbers of oxygen atoms to even numbers to simplify the balancing process. The video concludes with a balanced equation and offers tips for balancing similar equations.

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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial number of sulfur atoms on the reactant side of the equation?

One

Four

Two

Three

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it suggested to make the number of oxygens even when balancing the equation?

To decrease the number of sulfur atoms

To increase the number of sulfur atoms

To make the equation more complex

To simplify the calculation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is placed in front of SO3 to balance the oxygens?

1

3

2

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After placing a 2 in front of SO3, what is the total number of oxygen atoms on the product side?

5

4

3

6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is used in front of sulfur on the reactant side to balance the equation?

2

3

1

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final tip given for balancing equations with odd numbers of oxygens?

Add more sulfur

Make the number of oxygens even

Remove some oxygen

Ignore the imbalance