Signs of chemical reactions

Signs of chemical reactions

Assessment

Flashcard

Science

8th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

2.

FLASHCARD QUESTION

Front

What evidence indicates that a chemical reaction has occurred?

Back

The formation of a new substance is a key indicator of a chemical reaction.

3.

FLASHCARD QUESTION

Front

Where are the reactants located in a chemical equation?

Back

The reactants are on the left side of the chemical equation.

4.

FLASHCARD QUESTION

Front

What does the subscript in a chemical formula represent?

Back

The subscript indicates the number of atoms of an element in a molecule.

5.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

6.

FLASHCARD QUESTION

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

7.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

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