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Balancing Equations & Conservation of Mass Quiz Review

Authored by Michelle Lawrence

Chemistry

11th Grade

NGSS covered

Used 1+ times

Balancing Equations & Conservation of Mass Quiz Review
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36 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The number in front of a compound or element is a 

Subscript
Coefficient
Superscript
Charge

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the Law of Conservation of mass?

Mass is created in a chemical reaction
Mass is created in a physical change
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
Mass is never created or destroyed

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many iron atoms are in 
Fe(NO3)2

1
2
3
6

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is this chemical equation balanced?
2Na + Cl2 ----> 2NaCl

Yes
No

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Balance this equation:
MgCl2 --> Mg4+ Cl2

It's already balanced.
4MgCl2 --> Mg4+ 4Cl2
4MgCl2 --> Mg4+ 5Cl2

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Mg  +  ___ HCl  →   MgCl2  +   H2

1
2
3
4

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

An oreo cookie weighs 20 grams.  It gets crushed into crumbs for a recipe.  How much do its crumbs weigh?

15 grams
25 grams
20 grams

Tags

NGSS.HS-PS1-7

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