Indicators of chemical reaction

Indicators of chemical reaction

Assessment

Assessment

Created by

Marc Anselmo

Science

6th - 8th Grade

154 plays

Easy

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26 questions

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1.

Multiple Choice

2 mins

1 pt

Evidence of a chemical reactions is anything that shows - 

a new substance has formed

a solid dissolved in a liquid

interaction between 2 gases

a change in the state of matter

2.

Multiple Choice

30 sec

1 pt

Media Image

Shirin breaks Xavier's pencil. What type of change has occurred?

physical

chemical

property

puberty

3.

Multiple Choice

30 sec

1 pt

Which of these is NOT a sign that a chemical change has occurred?

A change in mass

An unexpected color change

A temperature change

The formation of a new substance

4.

Multiple Choice

30 sec

1 pt

Which of the following is a chemical change?

water freezes to form ice

sugar dissolves in water

wood burns in a campfire

a piece of metal expands when heated

5.

Multiple Choice

5 mins

1 pt

When coal burns carbon dioxide is produced from the carbon in coal and the oxygen in air. Which of these is the best evidence that a chemical reaction occurs when coal burns?

The shape of the coal changes

Oxygen is present

A change in color

Coal is made up of more than one element

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