Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Mia Campbell

FREE Resource

The video tutorial explains how to balance a double displacement reaction involving copper(II) sulfate and sodium phosphate. It introduces a technique for simplifying the process by treating polyatomic ions as single units. The tutorial provides a step-by-step guide to counting atoms and adjusting coefficients to achieve a balanced equation. The video concludes with tips for using this method effectively in similar reactions.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in balancing a double displacement reaction?

Change the chemical formulas

Identify the products

Add coefficients randomly

Count the atoms on each side

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it helpful to treat polyatomic ions as a single unit when balancing equations?

It increases the number of atoms

It makes the equation more complex

It simplifies the balancing process

It changes the chemical properties

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is placed in front of copper sulfate to balance the copper atoms?

3

2

1

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many sulfate ions are present after balancing the copper sulfate?

4

3

2

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is used in front of sodium phosphate to balance the sodium atoms?

2

1

3

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many sodium atoms are present after balancing the equation?

6

8

4

2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final step in ensuring the equation is balanced?

Recalculate the molecular weights

Change the chemical formulas

Verify the number of atoms on each side

Check the coefficients

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