9th grade - Balancing chemical equations

9th grade - Balancing chemical equations

8th Grade

20 Qs

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9th grade - Balancing chemical equations

9th grade - Balancing chemical equations

Assessment

Quiz

Chemistry

8th Grade

Medium

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

Standards-aligned

Created by

Sergio Ortiz G

Used 69+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does the Law of Conservation of Mass state?

The number of atoms never changes during a chemical reaction

The number of atoms always changes during a chemical reaction

The number of atoms sometimes changes during a chemical reaction

The number of molecules never changes during a chemical reaction

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the left part of a chemical equation called?
2H2 + O2 --> 2H2O
Reactants
Products 
Yields 
Chemical Equation 

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the right part of a chemical equation called...
2H2 + O2 --> 2H2O
Reactants
Products 
Yields 
Chemical Equation 

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the total number of atoms present in 5Na3PO4
5
40
55
8

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many Mn atoms are found in the following compound?
3Cr(MnO4)6
3
4
6
18

Tags

NGSS.MS-PS1-1

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the little number after an element in a chemical equation called.
Example: H2
Coefficient 
Subscript
Atom
Equation

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Is the following equation balanced?...
Al + O2 --> 2Al2O3
Yes!
No!

Tags

NGSS.MS-PS1-5

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