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Calcium Carbonate Decomposition Concepts

Calcium Carbonate Decomposition Concepts

Assessment

Interactive Video

Chemistry, Science

7th - 10th Grade

Practice Problem

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains the decomposition of calcium carbonate, specifically in the form of limestone or marble chips. It details the process of heating the material strongly to produce calcium oxide, also known as lime, which historically provided artificial light in theaters, hence the term 'limelight'. The tutorial also covers the cooling process and the exothermic hydration reaction that occurs when water is added to the decomposed material.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial form of calcium carbonate used in the experiment?

Limestone

Chalk

Gypsum

Marble chips

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required to decompose calcium carbonate?

Mixing with water

Strong heating for a few minutes

Adding a catalyst

Exposure to sunlight

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What tool is suggested to hold the marble chip during heating?

A pair of tongs

A wire holder

A metal clamp

A wooden stick

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the metal holder when it is heated?

It changes color

It melts

It glows quickly

It breaks

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is produced when calcium carbonate decomposes?

Calcium hydroxide

Calcium oxide

Calcium chloride

Calcium sulfate

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was calcium oxide historically known as?

Gypsum

Plaster

Lime

Chalk

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of 'limelight' in the context of calcium oxide?

It was used as an early form of artificial light in theaters

It was used in early medical treatments

It was used in early photography

It was used in ancient construction

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