Chemical Reaction
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Charles Martinez
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The mathematical representation that describes what happens in a chemical reaction is known as
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does the Law of Conservation of Mass state?
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the left part of a chemical equation called?
H2 + O → H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the right part of a chemical equation called?
H2 + O → H2O
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
You know a chemical reaction has occurred if
there is a precipitate.
there is a color change.
there is a temperature change.
All of these answers are evidence.
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
When materials combine to form new compounds it is a chemical change. Which example is a chemical change?
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A reaction that gives off heat to its surroundings is...
Tags
NGSS.MS-PS1-4
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