Chemical Reactions
Authored by Colleen Leeson
Science
8th Grade
NGSS covered
Used 1+ times
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40 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
According to the law of conservation of mass, matter cannot be created or (a)
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: In a complete chemical equation, there must be the same number of atoms of each element on the reactants and products side.
True
False
Tags
NGSS.MS-PS1-5
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
In a chemical reaction, atoms (a) and form new bonds.
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Look at the chemical equation.
How many atoms of mercury (Hg) are in the reactants?
(a)
Tags
NGSS.MS-PS1-1
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Look at the chemical equation.
How many atoms of oxygen (O) are in the reactants?
(a)
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-1
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Look at the chemical equation.
How many atoms of mercury (Hg) are in the products?
(a)
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Look at the chemical equation.
How many atoms of oxygen (O) are in the products?
(a)
Tags
NGSS.HS-PS1-7
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