6.6 Warm Up
Assessment
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Nathan Caswell
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Chemistry
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6th - 8th Grade
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5 questions
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1.
Multiple Choice
Density is a characteristic property of a substance. This means
You can identify a substance by its density
All substances have density
Density changes with temperature
Only some substances have density
2.
Multiple Choice
Solubility is a characteristic property of a substance. This means
You can identify a substance by its solubility
All substances dissolve
Not all substances dissolve
Dissolving is affected by temperature
3.
Multiple Select
These are clues that a chemical reaction has taken place
Choose any/all that are true
Precipitate
Bubbles
Color change
Dissolving
4.
Multiple Choice
A chemical reaction produces bubbles and the mass of the experiment is less after the reaction. The mass is less because
Mass gets used up in a chemical reaction
Some mass escaped into the air in the form of gas
Atoms in gas have less mass than atoms in liquids
Mass changes randomly during a chemical reaction
5.
Multiple Choice
A chemical reaction is different from a physical change because
New substances are created during a chemical reaction
Chemical reactions always produce a gas
Chemical reactions don't produce solids
Chemical reactions can't be seen
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