Semeter 1 review CHEMISTRY

Semeter 1 review CHEMISTRY

Assessment

Flashcard

Science, Chemistry

10th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

2.

FLASHCARD QUESTION

Front

True or False: The density of a specific type of material never changes.

Back

True

3.

FLASHCARD QUESTION

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

4.

FLASHCARD QUESTION

Front

Why is the change of shape in clay considered a physical change?

Back

Because the clay can be reshaped back to its original form without any chemical alteration.

5.

FLASHCARD QUESTION

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with different properties, such as burning wood producing ashes.

6.

FLASHCARD QUESTION

Front

True or False: Experiments should be repeated to verify results.

Back

True

7.

FLASHCARD QUESTION

Front

What is a solution?

Back

A solution is a homogeneous mixture formed when a solid is dissolved in a liquid.

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