Chemical Reactions

Chemical Reactions

Assessment

Flashcard

Chemistry

9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a chemical reaction?

Back

A process where reactants transform into products, involving the breaking and forming of chemical bonds.

2.

FLASHCARD QUESTION

Front

What are reactants?

Back

Substances that undergo change during a chemical reaction, found on the left side of a chemical equation.

3.

FLASHCARD QUESTION

Front

What are products?

Back

New substances formed as a result of a chemical reaction, found on the right side of a chemical equation.

4.

FLASHCARD QUESTION

Front

How do you balance a chemical equation?

Back

By ensuring the number of atoms for each element is the same on both sides of the equation.

5.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

6.

FLASHCARD QUESTION

Front

What does the coefficient in a chemical equation represent?

Back

The number of molecules or moles of a substance involved in the reaction.

7.

FLASHCARD QUESTION

Front

Balance the equation: C + O2 -> CO2

Back

2C + O2 -> 2CO2

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