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Balancing Equations and Elements 31-40

Authored by Adnan Hakimji

Chemistry

9th - 10th Grade

NGSS covered

Used 2+ times

Balancing Equations and Elements 31-40
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25 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many atoms of carbon (C) are in C6H12O6?

3
6
12
24

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The red numbers in the image below represent ________

subscripts
coefficients
I don't know, and don't want to try
None of the answers are correct

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In the equation,          2Mg + O2 ---> 2MgO, which are the reactants?

Mg and O
MgO
Mg and MgO
O and MgO

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance this equation...
H2 + Cl2 --> HCl

It is balanced 
3H2 + Cl2 --> 6H2Cl
H2 + Cl2 --> 2HCl
I don't know! Oh well.

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance this equation...
HgO --> 2Hg + O2

It is balanced 
2HgO --> Hg + O2
2HgO --> 2Hg + O2
I don't know...Oh well!

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance this equation...
Sb2S3 + O2 --> Sb + SO2

It is balanced
Sb2S3 + 3O2 --> 2Sb + 3SO2
Sb2S3 + O2 --> 2Sb + SO2
I don't know...Oh well!

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3

4Fe + 3O2 -> 2Fe2O3
2 Fe + 3O2 -> Fe2O6
4 Fe + O6 -> 2Fe2O3
None of the options are correctly balanced.

Tags

NGSS.MS-PS1-5

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