Balancing Chemical Equations

Balancing Chemical Equations

Assessment

Flashcard

Science

9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What are the two sides of a chemical equation called?

Back

Reactants (left) and Products (right)

2.

FLASHCARD QUESTION

Front

What is the little number after an element in a chemical equation called?

Back

Subscript

3.

FLASHCARD QUESTION

Front

In the equation PCl5 + ___ H2O → ___ HCl + H3PO4, what are the coefficients for H2O and HCl?

Back

4 for H2O and 5 for HCl

4.

FLASHCARD QUESTION

Front

What can be placed to the left of a formula of a substance to balance a chemical equation?

Back

Coefficient

5.

FLASHCARD QUESTION

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be gained or lost in a chemical reaction.

6.

FLASHCARD QUESTION

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.

7.

FLASHCARD QUESTION

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the same number of atoms of each element is present on both sides of the equation.

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