Law of Conservation of Mass Test 22.23

Front

Matter cannot be created or destroyed: but it can be...

Back

transferred, transformed, changed

Tags

NGSS.MS-PS1-5

Front

A student dissolved 25 grams of salt into 1,000 grams of water. What should the mass of the saltwater mixture be?

Back

1025 grams

Front

Which of the models of a chemical reaction best represents the Law of Conservation of Mass? Options: A, B, C, D

Back

A

Tags

NGSS.MS-PS1-5

Front

Which of the models of a chemical reaction best represents the Law of Conservation of Mass? Options: A, B, C, D

Back

A

Tags

NGSS.MS-PS1-5

Front

A student heated a 10 gram sample of a chemical in an open container. A chemical reaction occurred, and the mass of the sample was measured again. The mass of the sample was found to be less than before the reaction. What best explains the decrease in mass?

Back

Some of the particles escaped as a gas formed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

How many Carbon atoms are present in this compound?

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3

Tags

NGSS.MS-PS1-1

Front

How many atoms of iron are in this compound?

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2

Tags

NGSS.MS-PS1-1

Front

How many total atoms are in this compound?

Back

5

Tags

NGSS.MS-PS1-1

Front

How many Nitrogen atoms are in this compound?

Back

2

Tags

NGSS.MS-PS1-1

Front

How many Nitrogen atoms are in this compound?

Back

8

Tags

NGSS.MS-PS1-1