Chemical Reactions Final Unit Assessment

Flashcard
•
Science
•
6th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process where substances (reactants) undergo a transformation to form new substances (products) with different properties.
2.
FLASHCARD QUESTION
Front
What is rusting an example of?
Back
A chemical reaction that occurs when iron reacts with oxygen and moisture, forming iron oxide.
3.
FLASHCARD QUESTION
Front
What is a physical change?
Back
A change that affects one or more physical properties of a substance without altering its chemical composition.
4.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A change that results in the formation of new chemical substances.
5.
FLASHCARD QUESTION
Front
What does it mean to rearrange?
Back
To change the order or position of something.
6.
FLASHCARD QUESTION
Front
Which of the following is NOT a chemical reaction: Mixing flour and sugar, Rusting, Burning paper?
Back
Mixing flour and sugar is NOT a chemical reaction.
7.
FLASHCARD QUESTION
Front
True or False: Different substances have the SAME properties because they are made of different groups of atoms.
Back
False. Different substances have different properties due to their unique atomic structures.
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