Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Emma Peterson

FREE Resource

The video tutorial explains how to balance a chemical equation involving iron hydroxide and hydrogen peroxide. It begins by counting the atoms on each side of the equation and then proceeds to balance them by adjusting coefficients. The key strategy is to convert odd numbers to even, making it easier to balance the equation. The tutorial concludes with a balanced equation and emphasizes the importance of even numbers in balancing chemical equations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the reactants in the chemical equation discussed in the video?

Iron hydroxide and water

Iron oxide and hydrogen peroxide

Iron hydroxide and hydrogen peroxide

Iron oxide and water

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many hydrogen atoms are initially counted on the reactant side?

Four

Two

Six

Eight

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of making odd numbers even in the context of balancing equations?

To simplify the calculation of coefficients

To increase the number of atoms

To make the equation more complex

To ensure the equation is balanced

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is applied to iron hydroxide to balance the equation?

2

4

3

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After applying the coefficient to iron hydroxide, how many oxygen atoms are there on the reactant side?

Ten

Four

Six

Eight

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final step to ensure the equation is balanced?

Recalculate the number of oxygen and hydrogen atoms

Add more reactants

Recalculate the number of iron atoms

Remove some products

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key strategy mentioned for balancing equations?

Remove some products

Add more reactants

Use larger coefficients

Make odd numbers even

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