Evidence of Chemical Reactions
Flashcard
•
Science
•
8th Grade
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is evidence of a chemical reaction?
Back
Evidence of a chemical reaction includes changes such as temperature increase, color change, gas production, or formation of a new substance.
Tags
NGSS.MS-PS1-2
2.
FLASHCARD QUESTION
Front
What happens to the mass of reactants in a chemical reaction?
Back
The mass of the reactants remains the same as the mass of the products, according to the Law of Conservation of Mass.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A chemical equation is a symbolic representation of a chemical reaction, showing the reactants on the left and the products on the right.
Tags
NGSS.MS-PS1-1
4.
FLASHCARD QUESTION
Front
What indicates a temperature change in a chemical reaction?
Back
A temperature change indicates that energy is either absorbed or released during the reaction.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
5.
FLASHCARD QUESTION
Front
What is a precipitate?
Back
A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.
Tags
NGSS.MS-PS1-2
6.
FLASHCARD QUESTION
Front
What does it mean when a new substance is produced in a reaction?
Back
The formation of a new substance indicates that a chemical change has occurred, resulting in different properties from the original substances.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
FLASHCARD QUESTION
Front
What is a sign of a physical change?
Back
A loss of transparency is a sign of a physical change, not a chemical change.
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