Chemistry Review (EL #4)
8th Grade
•32 Qs
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Chemistry Review (EL #4)
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Easy
Standards-aligned
Krissy Monagle
Used 36+ times
FREE Resource
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32 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a compound?
Ne
Na
NaHCO₃
N
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is C₂H₄O₂ a compound or element?
Compound
Element
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is the correct balanced equation for the decomposition of Mercury(II) oxide?
HgO → Hg + 2O2
2HgO → Hg + O₂
HgO → 2HgO₂
2HgO → 2Hg + O₂
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for the molecule represented in the image?
HO
H2O
H2O2
HO2
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does a coefficient belong in a chemical equation (if needed)?
In the middle of a compound or formula as needed.
In the front of a formula or compound as needed.
It can be placed anywhere in a chemical equation.
It goes behind a chemical formula as needed.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance the equation: ( Na + O2 -> Na2O ) When balanced, how many total atoms are in the reactants?
7
9
6
3
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ammonia, ( NH3 ), is an example of a(n):
Mixture
Atom
Element
Compound
Tags
NGSS.MS-PS1-1
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