Reactions

Reactions

7th - 8th Grade

31 Qs

quiz-placeholder

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Reactions

Reactions

Assessment

Quiz

Chemistry

7th - 8th Grade

Hard

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

+6

Standards-aligned

Created by

Steven Keim

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31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for the → sign in a reaction?

makes
produces
yields
all are correct

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which set of coefficients properly balances the reaction below?
_Cu + _H2→_ CuO3 + _H2

1,3,1,5
2,6,2,6
1,3,1,3
1,2,3,4

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is the reaction below exothermic or endothermic?
CH4 + 2O2 → CO2 + H2O + heat

exothermic
endothermic

Tags

NGSS.HS-PS1-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Law of Conservation of Mass states

that matter exists in all states and reacts the same
that matter can only be changed into new substances by introducing a catalyst
that matter exists in the same state throughout any chemical change
that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

___________________ are the elements/compounds formed in a chemical reaction (on the right)

Polymers
Bonds
Reactants
Products

Tags

NGSS.HS-PS1-6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the reactants in the chemical equation pictured?

CH4 and CO2
CH4 and O2
CO2 and H2O
O2 and H2O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is this balanced?...
Al + O2 --> 2Al2O3

Yes!
NO!

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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