Chemical Reactions

Chemical Reactions

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What are substances formed as a result of a chemical reaction called?

Back

Products are the substances formed as a result of a chemical reaction.

2.

FLASHCARD QUESTION

Front

What is a number written in front of a chemical formula called?

Back

A coefficient is a number written in front of a chemical formula to indicate how many molecules are present.

3.

FLASHCARD QUESTION

Front

True or False: An inhibitor decreases the rate of a reaction.

Back

True. An inhibitor is a substance that slows down or prevents a chemical reaction.

4.

FLASHCARD QUESTION

Front

What type of reaction is represented by the equation FeS + HCl → FeCl2 + H2S?

Back

This is a replacement reaction, where one element replaces another in a compound.

5.

FLASHCARD QUESTION

Front

What happens to the rate of a reaction when the temperature is increased?

Back

Increasing the temperature of a reaction will increase the rate of the reaction.

6.

FLASHCARD QUESTION

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

7.

FLASHCARD QUESTION

Front

What are reactants?

Back

Reactants are the starting substances in a chemical reaction that undergo change.

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