Balancing Chemical Equations

Balancing Chemical Equations

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Practice Problem

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains how to balance a chemical equation involving sodium bromide and chlorine gas, resulting in sodium chloride and bromine gas. It begins by counting the atoms on each side of the equation, then adjusts coefficients to balance bromine atoms. Next, it balances sodium and chlorine atoms by adding coefficients, ensuring the same number of each type of atom on both sides. The tutorial concludes with a confirmation that the equation is balanced.

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

One

Two

Three

Four

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is added to sodium bromide to balance the bromine atoms?

1

4

3

2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing bromine, what is the next step in balancing the equation?

Add a coefficient to sodium bromide

Add a coefficient to chlorine gas

Add a coefficient to sodium chloride

Add a coefficient to bromine gas

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final coefficient in front of sodium chloride to balance the sodium atoms?

1

4

2

3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many sodium atoms are there on each side of the balanced equation?

Two

Four

One

Three

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final balanced equation for the reaction?

2NaBr + Cl2 → 2NaCl + Br2

2NaBr + 2Cl2 → 2NaCl + 2Br2

NaBr + 2Cl2 → NaCl + 2Br2

NaBr + Cl2 → NaCl + Br2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the balanced equation indicate about the number of each type of atom on both sides?

There are more atoms on the reactant side

There are more atoms on the product side

The equation is not balanced

The number of each type of atom is equal on both sides

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