Honors 7th Chemistry Unit 5

Honors 7th Chemistry Unit 5

Assessment

Flashcard

Chemistry

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an element?

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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