Chemical Reactions

Chemical Reactions

8th Grade

10 Qs

quiz-placeholder

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Chemical Reactions

Chemical Reactions

Assessment

Quiz

Chemistry

8th Grade

Easy

Created by

CHANDANI SHARMA

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a chemical reaction?

D. The separation of a mixture into its components.

B. The process of boiling a liquid to form a gas.

C. The change in state from solid to liquid.

A. Transformation of substances into new substances with different properties.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a type of chemical reaction?

C. Displacement

A. Combination

B. Evaporation

D. Double displacement

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the Law of Conservation of Mass state?

B. Mass remains constant in a closed system.

D. Mass can change in a closed system.

C. Mass increases in a closed system.

A. Mass decreases in a closed system.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the Activity Series?

A. To rank elements based on their atomic number.

B. To predict the color of compounds.

C. To rank elements based on their reactivity.

D. To determine the melting point of elements.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process to obtain metals from ores through reduction or electrolysis called?

D. Extraction of Metals

B. Metal Purification

C. Metal Refining

A. Extraction of Minerals

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does Green Chemistry focus on?

C. Minimizing impact on nature.

D. Maximizing the use of chemicals.

B. Minimizing the use of chemicals.

A. Maximizing impact on nature.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a type of chemical reaction involving the combination of two or more substances to form a new compound?

A. Combination

D. Double displacement

B. Decomposition

C. Displacement

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