Chemical Reactions, Matter and Energy

Quiz
•
Science
•
8th Grade
•
Hard
+5
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In an endothermic reaction, heat is ...
taken in or absorbed
given out or released
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Exothermic reactions...
Absorb energy
Release energy
Release Color
Absorb Color
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-4
NGSS.MS-PS3-3
NGSS.MS-PS3-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When does a chemical reaction stop?
When the lab is finished
When the excess reactant is used up
When the limiting reactant is used up
Chemical reactions never stop
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is essential for a combustion reaction to begin?
Carbon dioxide
Fuel
Fuel, oxygen and heat
Water and oxygen
5.
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
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens in ALL chemical changes?
Change in state of matter
A new substance is formed
Bubbles are produced
An explosion
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the law of conservation of mass, how does the amount of each element on the product side compare to each element on the reactant side?
The amount of atoms on each side is equal
The amount of atoms on the product side is greater
The amount of atoms on the reactant side is greater
Depends on the reaction
Tags
NGSS.MS-PS1-5
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