Amplify Chemical Reactions
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A scientist mixed two samples together. She analyzed the results and found two ending substances. One of the ending substances is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the scientist mixed together?
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, the workers found two substances that melt at higher temperatures in the sealed container. (Nothing had escaped.)
Which of the diagrams shows the repeating groups of atoms that make up the ending substances?
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A scientist mixed two samples together: a white solid that boils at about 800°C and a colorless gas that boils at about 70°C. He analyzed the results and found two ending substances. One of the ending substances boils at 245°C. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the scientist mixed together?
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Andres is a chemist, he mixed two liquid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Andres found two solid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
5.
DRAG AND DROP QUESTION
1 min • 2 pts
Bubbles form when two or more substances are combined is a (a) (b)
Chemical Change
Physical Change
Tags
NGSS.MS-PS1-2
6.
DRAG AND DROP QUESTION
1 min • 2 pts
An explosion occurs is a (a)
Chemical Change
Physical Change
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
HOTSPOT QUESTION
1 min • 1 pt
Which is the product.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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