Chemical Equations

Chemical Equations

Assessment

Flashcard

Science

8th Grade

Hard

NGSS
MS-PS1-5, MS-PS1-1, MS-PS1-2

Standards-aligned

Created by

Wayground Content

FREE Resource

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

Tags

NGSS.MS-PS1-5

2.

FLASHCARD QUESTION

Front

What do coefficients in a chemical equation represent?

Back

Coefficients indicate the number of molecules or moles of a substance involved in a reaction.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

3.

FLASHCARD QUESTION

Front

What do subscripts in a chemical formula indicate?

Back

Subscripts indicate the number of atoms of an element in a molecule.

Tags

NGSS.MS-PS1-1

4.

FLASHCARD QUESTION

Front

How do you determine the total number of atoms in a compound?

Back

Add the number of atoms of each element, multiplied by their respective coefficients.

5.

FLASHCARD QUESTION

Front

What is the difference between a reactant and a product?

Back

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

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Tags

NGSS.MS-PS1-5

7.

FLASHCARD QUESTION

Front

How many total atoms are in the compound 4NH3?

Back

There are 16 total atoms in 4NH3 (4 nitrogen and 12 hydrogen).

Tags

NGSS.MS-PS1-1

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