Balancing Chemical Equations and types of Reactions

Balancing Chemical Equations and types of Reactions

Assessment

Flashcard

Chemistry

10th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an exothermic reaction?

Back

A reaction that releases heat to its surroundings.

2.

FLASHCARD QUESTION

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

3.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

4.

FLASHCARD QUESTION

Front

What are coefficients in a chemical equation?

Back

Numbers placed before compounds to indicate the number of molecules involved in the reaction.

5.

FLASHCARD QUESTION

Front

What are subscripts in a chemical formula?

Back

Numbers that indicate the number of atoms of an element in a molecule.

6.

FLASHCARD QUESTION

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients to ensure the same number of each type of atom on both sides of the equation.

7.

FLASHCARD QUESTION

Front

What happens to the rate of a chemical reaction when temperature increases?

Back

The reaction rate usually increases.

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