Balancing Chemical Reactions and Products

Balancing Chemical Reactions and Products

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Lucas Foster

FREE Resource

The video tutorial explains how to balance the chemical equation for the reaction between CCl4 and HF, which produces dichlorodifluoromethane and hydrochloric acid. The reaction is harmful to the ozone layer and is not commonly performed. The tutorial guides viewers through counting atoms on both sides of the equation and balancing them by adjusting coefficients. It concludes with a note on the reaction conditions, suggesting that all substances are in the gas phase and a catalyst may be involved.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products formed when CCl4 reacts with HF?

Methane and Chlorine gas

Carbon dioxide and Water

Dichlorodifluoromethane and Hydrochloric acid

Fluorine gas and Hydrochloric acid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the reaction involving CCl4 and HF not commonly performed?

It is not efficient.

It requires rare materials.

It produces a substance harmful to the ozone layer.

It is too expensive.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many chlorine atoms are present on the product side before balancing?

Four

One

Two

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in balancing the equation for the reaction?

Balancing the carbon atoms

Balancing the chlorine atoms

Balancing the hydrogen atoms

Balancing the fluorine atoms

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What coefficient is placed in front of HF to balance the fluorine atoms?

4

3

2

1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After balancing, how many HCl molecules are produced?

Three

Four

One

Two

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What phase are the substances expected to be in for the reaction to occur?

Solid

Liquid

Gas

Plasma

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role does a catalyst play in this reaction?

It increases the temperature.

It speeds up the reaction.

It changes the products formed.

It is not necessary for the reaction.