Question 1

Which of the following is an example of chemical change?

Accepted Answer

C. Burning

Answer

B. Freezing

Answer

A. Boiling

Answer

D. Melting

Question 2

Which is a chemical property of matter?

Accepted Answer

D. Flammability

Answer

C. Malleability

Answer

A. Density

Answer

B. Ductility

Question 3

In which state of matter does a substance exist if its molecules are most closely packed?

Accepted Answer

D. Solid

Answer

C. Plasma

Answer

A. Gas

Answer

B. Liquid

Question 4

Which of the following is an example of change of state?

Accepted Answer

D. Ice cubes melting

Answer

B. Exposing photographic film

Answer

A. Paper Burning

Answer

C. Liquid filing a glass

Question 5

What is a good sign that a chemical change has occurred?

Accepted Answer

B. There is a production of heat, light and smoke.

Answer

D. The substance seems to have disappeared.

Answer

A. The state of matter has change.

Answer

C. The physical properties are the same.

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