Chemical Reactions Test
Authored by JENNIFER MEDLOCK
Science
7th Grade
NGSS covered
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a heterogeneous mixture, the substances
can be physically separated.
are chemically combined.
can only be separated through chemical processes.
break down into new substances.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is true?
A solution is a pure substance.
A solution is a mixture.
The solvent is dissolved in the solute.
A solution has the same properties as a colloid.
3.
DROPDOWN QUESTION
1 min • 1 pt
Milk and sugar water are both (a) . However, milk is a (b) and sugar water is a (c) .
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Examine the data table. Why is ethylene glycol used in de-icing fluid for airplanes and other vehicles?
Evaluate responses using AI:
OFF
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-4
5.
OPEN ENDED QUESTION
3 mins • 1 pt
What factors affect the properties of a solution?
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a chemical change?
breaking a rock into smaller pieces
burning a candle
stirring butter and sugar together
adding food coloring to water
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In general, what happens to the rate of reaction when you decrease the temperature of a chemical reaction?
it decreases
it increases
it is unaffected
it increases, and then decreases
Tags
NGSS.MS-PS1-4
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