Indicators of chemical reaction
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Assessment
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Marc Anselmo
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Science
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6th - 8th Grade
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154 plays
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Easy
Student preview
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26 questions
Show answers
1.
Multiple Choice
a new substance has formed
a solid dissolved in a liquid
interaction between 2 gases
a change in the state of matter
2.
Multiple Choice
Shirin breaks Xavier's pencil. What type of change has occurred?
physical
chemical
property
puberty
3.
Multiple Choice
Which of these is NOT a sign that a chemical change has occurred?
A change in mass
An unexpected color change
A temperature change
The formation of a new substance
4.
Multiple Choice
Which of the following is a chemical change?
water freezes to form ice
sugar dissolves in water
wood burns in a campfire
a piece of metal expands when heated
5.
Multiple Choice
When coal burns carbon dioxide is produced from the carbon in coal and the oxygen in air. Which of these is the best evidence that a chemical reaction occurs when coal burns?
The shape of the coal changes
Oxygen is present
A change in color
Coal is made up of more than one element
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