Classify and Balance Equations

Classify and Balance Equations

8th Grade

25 Qs

quiz-placeholder

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Classify and Balance Equations

Classify and Balance Equations

Assessment

Quiz

Science

8th Grade

Practice Problem

Hard

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

Standards-aligned

Created by

Lisa Thompson

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When I want to balance a chemical equation, this is the only number that I can change.

Subscript

Coefficient

Elemental Symbol

Yields

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The subscript tells you how many of what there are in a chemical reaction?

atoms of that element

molecules of that compound

number of reactions

They don't tell you anything.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A coefficient tells you what about the chemical reaction?

Numbers of atoms in that element

Numbers of molecules for that compound.

How many reactions there are.

They don't tell you anything.

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The big/regular sized numbers in a chemical formula:

(the RED numbers)

Subscripts

Coefficients

Numbers

Molecules

5.

DRAG AND DROP QUESTION

1 min • 1 pt

Media Image

The numbers placed in ​ (a)   of formulas to balance equations are called ​ (b)   , and they multiply all the atoms in a ​ (c)   . Thus, the symbol “2NaHCO₃” indicates ​ (d)   units of sodium bicarbonate, which contain 2 Na atoms, 2 H atoms, 2 C atoms, and 6 O atoms

(2 X 3= 6, the coefficient times the subscript for O).

front

coefficients

two

formula

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following models best demonstrates a balanced chemical equation?

F

G

H

J

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Is this equation balanced?

Yes, everything appears the same amount on each side.

No, there are too many oxygen on the left side.

Tags

NGSS.MS-PS1-5

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