Quiz about chemical change

Question 1

Question 1.

Accepted Answer

Chemical Change

Answer

Physical Change

Question 2

Question 2.

Accepted Answer

Chemical Change

Answer

Physical Change

Question 3

Question 3.

Accepted Answer

Chemical Change

Answer

Physical Change

Question 4

Question 4.

Accepted Answer

Chemical Change

Answer

Physical Change

Question 5

Question 5.

Accepted Answer

Physical Change

Answer

Chemical Change

Question 6

Question 6.

Accepted Answer

Physical Change

Answer

Chemical Change

Question 7

Question 7.

Accepted Answer

Physical Change

Answer

Chemical Change

Question 8

Question 8.

Accepted Answer

Physical Change

Answer

Chemical Change

Question 9

Question 9.

Accepted Answer

Chemical Change

Answer

Physical Change

Question 10

What key words, when present in a question about chemical reactions, might indicate a chemical change is occuring? Check all that apply.

Accepted Answer

Bubbling

Accepted Answer

Fizzing

Answer

Dissolving

Answer

Evaporating

Question 11

Which of the following does NOT indicate a chemical reaction is occuring? Check all that apply.

Accepted Answer

Unknown A dissolves into Unknown B

Accepted Answer

Unknown A sinks to the bottom when added to Unknown B

Accepted Answer

Unknown A floats to the top when added to Unknown B

Answer

Unknown A creates fizzing and bubbles when combined with Unknown B

Question 12

Which of the following is a sign that a chemical reaction has occurred?

Accepted Answer

formation of a gas

Answer

change in shape

Answer

melting

Answer

dissolving

Question 13

Is melting butter for popcorn a chemical or physical change?

Accepted Answer

physical

Answer

chemical

Question 14

A solid piece of chocolate is melted and changed to liquid form. Which property of the piece of chocolate will remain the same?

Accepted Answer

Mass

Answer

Texture

Answer

Temperature

Answer

Shape

Question 15

A change where one or more new substances are created.

Accepted Answer

Chemical Change

Answer

Physical Change

Question 16

Change in color is a physical change.

Accepted Answer

False

Answer

True

Question 17

Fizzing, foaming, and burning are all examples of

Accepted Answer

Chemical change

Answer

Physical change

Question 18

Rust on an iron bar is an example of chemical change.

Accepted Answer

True

Answer

False

Question 19

Burning wood

Accepted Answer

chemical change

Answer

physical change

Question 20

Acid in stomach, breaking down food.

Accepted Answer

chemical change

Answer

physical change

chemical change

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