Balancing Equations

Balancing Equations

Assessment

Flashcard

Science

10th Grade

Hard

NGSS
MS-PS1-5, MS-PS1-1, HS-PS1-7

+1

Standards-aligned

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16 questions

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1.

FLASHCARD QUESTION

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.

Tags

NGSS.MS-PS1-5

2.

FLASHCARD QUESTION

Front

What does the coefficient in a chemical equation represent?

Back

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

Tags

NGSS.MS-PS1-1

3.

FLASHCARD QUESTION

Front

How do you determine the coefficients needed to balance a chemical equation?

Back

You adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

Tags

NGSS.MS-PS1-5

4.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

Tags

NGSS.MS-PS1-5

5.

FLASHCARD QUESTION

Front

Balance the equation: __KNO3 --> __KNO2 + __O2

Back

2, 2, 1

Tags

NGSS.MS-PS1-5

6.

FLASHCARD QUESTION

Front

Balance the equation: __Al + __HCl --> __H2 + __AlCl3

Back

2, 6, 3, 2

Tags

NGSS.MS-PS1-5

7.

FLASHCARD QUESTION

Front

Balance the equation: __Ag2O --> __Ag + __O2

Back

2, 4, 1

Tags

NGSS.MS-PS1-5

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