What is an element?
Honors 7th Chemistry Unit 5

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Chemistry
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7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An element is a pure substance that consists of only one kind of atom.
2.
FLASHCARD QUESTION
Front
What is the pH of a base?
Back
A base is a substance with a pH greater than 7.
3.
FLASHCARD QUESTION
Front
What happens to sugar when it dissolves in water?
Back
The sugar grains get smaller in size until they can not be seen.
4.
FLASHCARD QUESTION
Front
What is the product of the reaction CaCl2 + Na2SO4?
Back
The products are Ca(SO4) and NaCl.
5.
FLASHCARD QUESTION
Front
What type of mixture are M&M's?
Back
M&M's are an example of a heterogeneous mixture.
6.
FLASHCARD QUESTION
Front
What is a homogeneous mixture?
Back
A homogeneous mixture is a mixture that has a uniform composition throughout.
7.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A chemical change occurs when a substance transforms into a different substance with different properties.
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