Chemical Reaction Benchmark Review 24-25

Chemical Reaction Benchmark Review 24-25

Assessment

Flashcard

Science

6th - 8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, demonstrating the conservation of mass.

2.

FLASHCARD QUESTION

Front

What is a chemical reaction?

Back

A chemical reaction is a process where substances (reactants) are transformed into new substances (products) through the breaking and forming of chemical bonds.

3.

FLASHCARD QUESTION

Front

What is the conservation of mass?

Back

The conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

4.

FLASHCARD QUESTION

Front

What is an example of a chemical reaction?

Back

An example of a chemical reaction is vinegar reacting with baking soda to produce carbon dioxide gas.

5.

FLASHCARD QUESTION

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.

6.

FLASHCARD QUESTION

Front

What does it mean if a chemical equation is not balanced?

Back

If a chemical equation is not balanced, it means that the number of atoms of at least one element is different on the reactant side compared to the product side.

7.

FLASHCARD QUESTION

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

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