Introduction to Chemical Reactions Quiz
Authored by Erica Frederick
Science
7th Grade
NGSS covered
Used 56+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are some clues that a chemical reaction has occurred?
Production of a gas
Formation of a precipitate (solid)
Change in color
All of the above
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an exothermic reaction?
A reaction that absorbs energy in the form of heat
A reaction that releases energy in the form of heat
A reaction that feels colder
A reaction that changes color
Tags
NGSS.MS-PS3-4
NGSS.MS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the substances that undergo chemical changes called?
Reactants
Products
Coefficients
Subscripts
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the substances that form in a chemical reaction called?
Reactants
Products
Coefficients
Subscripts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the regular-sized numbers in front of a chemical formula called?
Reactants
Products
Coefficients
Subscripts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the little numbers that you see after some elements called?
Reactants
Products
Coefficients
Subscripts
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the arrow in a chemical equation represent?
Reactants
Products
Coefficients
Yields
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