Law of Conservation of Mass

Law of Conservation of Mass

Assessment

Flashcard

Science

7th - 8th Grade

Hard

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20 questions

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1.

FLASHCARD QUESTION

Front

Matter can not be created nor destroyed: it can only be

Back

Transformed, changed

2.

FLASHCARD QUESTION

Front

The number to the lower side of an element is a

Back

Subscript

3.

FLASHCARD QUESTION

Front

The number in front of a compound or element is a

Back

Coefficient

4.

FLASHCARD QUESTION

Front

When is a chemical reaction balanced?

Back

Both sides have the same number of atoms

5.

FLASHCARD QUESTION

Front

If reaction starts with 20g of reactants it should produce

Back

a total of 20g of products

6.

FLASHCARD QUESTION

Front

When sodium and chlorine combine to form sodium chloride, sodium chloride is the: Originator, Reactant, Product, Produce

Back

Product

7.

FLASHCARD QUESTION

Front

How many Ca (Calcium) atoms are found in Ca(OH)2?

Back

1 atom

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