Balancing Equations

Balancing Equations

Assessment

Flashcard

Chemistry

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate the number of molecules or moles of that substance involved in the reaction.

2.

FLASHCARD QUESTION

Front

What does the principle of conservation of mass state in a chemical reaction?

Back

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

3.

FLASHCARD QUESTION

Front

How many oxygen atoms are present in 4H2O?

Back

There are 4 oxygen atoms in 4H2O.

4.

FLASHCARD QUESTION

Front

What is a reactant in a chemical equation?

Back

A reactant is a substance that undergoes a chemical change in a reaction, typically found on the left side of the equation.

5.

FLASHCARD QUESTION

Front

How many hydrogen atoms are in 4H2O?

Back

There are 8 hydrogen atoms in 4H2O.

6.

FLASHCARD QUESTION

Front

What is the difference between a reactant and a product in a chemical equation?

Back

Reactants are the starting substances that undergo change, while products are the substances formed as a result of the reaction.

7.

FLASHCARD QUESTION

Front

What is the significance of balancing a chemical equation?

Back

Balancing a chemical equation ensures that the same number of each type of atom is present on both sides of the equation, reflecting the conservation of mass.

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