Balance Chemical Equations

Balance Chemical Equations

Assessment

Flashcard

Chemistry

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the first step in balancing a chemical equation?

Back

Identify the number of atoms of each element in the reactants and products.

2.

FLASHCARD QUESTION

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be gained or lost in a chemical reaction.

3.

FLASHCARD QUESTION

Front

How do you balance the equation: Fe + O2 → Fe2O3?

Back

4Fe + 3O2 → 2Fe2O3.

4.

FLASHCARD QUESTION

Front

What is the balanced form of the equation AlCl3 + NaOH → Al(OH)3 + NaCl?

Back

1,3,1,3.

5.

FLASHCARD QUESTION

Front

How many atoms of carbon are in C6H12O6?

Back

6.

6.

FLASHCARD QUESTION

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved.

7.

FLASHCARD QUESTION

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the same number of each type of atom appears on both sides of the equation.

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