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chemical reactions

Authored by Laurie Ramos

Chemistry

10th Grade

NGSS covered

Used 1+ times

chemical reactions
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5 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In a chemical equation, is it true that -

the reactant side and product side can have different numbers of atoms for each element
there can be different elements on the reactant side and the product side
an element or compound must be accompanied by a phase change
the coefficients indicate the number of molecules of each reactant used and the number of molecules of each product made

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many F atoms are in this compound?

6MgF2

2

6

8

12

Tags

NGSS.MS-PS1-1

3.

MULTIPLE CHOICE QUESTION

1 min • 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

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance this equation.
_CH4 + _O--> _CO+ _H2O

1,2,1,1
2,1,2,1
1,2,1,2
0,2,0,2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How many atoms in all are in a molecule of serotonin?

C10H12N2O

22
24
25
4

Tags

NGSS.MS-PS1-1

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