Understanding Chemical Reactions and Equations
Authored by Denny Ho
Science
11th Grade
NGSS covered
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a synthesis reaction?
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
There are 4 hydrogen atoms
There are 4 sulfur atoms
There are 4 oxygen atoms
There are 4 molecules
Tags
NGSS.MS-PS1-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes a decomposition reaction?
Two or more substances combine to form one product
One chemical breaks down into two or more simpler substances
Two compounds exchange ions
A substance reacts with oxygen to produce energy
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1
2
3
4
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a single replacement reaction?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a combustion reaction?
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between a coefficient and a subscript in a chemical equation?
Coefficient shows the number of atoms, subscript shows the number of molecules
Coefficient shows the number of molecules, subscript shows the number of atoms in a molecule
Both show the number of atoms
Both show the number of molecules
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