Balancing Chemical Equations Concepts

Balancing Chemical Equations Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains how to balance the chemical equation for iron reacting with bromine gas to form iron(III) bromide. It begins by counting the atoms on each side of the equation and then uses a strategy of converting odd numbers to even numbers to simplify the balancing process. The tutorial provides step-by-step guidance to ensure the number of atoms for each element is equal on both sides of the equation, resulting in a balanced chemical equation.

Read more

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial chemical equation discussed in the video?

Fe + H2 → FeH3

Fe + Br2 → FeBr3

Fe + Cl2 → FeCl3

Fe + O2 → FeO

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it helpful to convert odd numbers to even numbers when balancing equations?

It decreases the number of atoms.

It makes the equation more complex.

It simplifies the balancing process.

It increases the number of atoms.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is placed in front of FeBr3 to help balance the equation?

1

4

2

3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many bromine atoms are on the product side after balancing?

8

6

2

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is used in front of Br2 to balance the bromine atoms?

1

2

4

3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final coefficient for iron (Fe) in the balanced equation?

1

2

4

3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main takeaway from the video regarding balancing equations?

Always start with the smallest atom.

Convert odd numbers to even numbers for easier balancing.

Use the largest possible coefficients.

Balance one side of the equation only.