Law of Conservation of Mass Review

Is this equation balanced?

• yes

• no

• Not enough information

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which picture below would correctly demonstrate the Law of Conservation of Matter if this picture is the reactants?

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Tags

NGSS.MS-PS1-5

Which diagram best demonstrates the law of conservation of mass?

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Tags

NGSS.MS-PS1-5

Which of the following models best demonstrates a balanced chemical equation?

• F

• G

• H

• J

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

The Law of the Conservation of Mass states that...

• you can create matter

• you can destroy matter

• matter is made up

• matter cannot be created or destroyed

Tags

NGSS.MS-PS1-5

The Law of Conservation of matter states that the total amount of matter ______________ after it undergoes change.

• disappears

• stays the same

• weighs less

• explodes

Tags

NGSS.MS-PS1-5

How many oxygen atoms are in this chemical formula?

• 6 oxygen atoms

• 2 oxygen atoms

• 3 oxygen atoms

• 4 oxygen atoms

Tags

NGSS.MS-PS1-1

Which Chemical Equation is Balanced?

• Fe₄+O₂------4FeO₂+O₂

• 2H₂+O₂-----2H₂O

• 3Cr+4O₂-----2Cr₂O₃

Tags

NGSS.MS-PS1-5

Does this follow the law of conservation of mass?

• Yes, because there are the same number of atoms.

• Yes, because there are not the same number of atoms.

• No, because there are the same number of atoms.

• No, because there are not the same number of atoms.

Tags

NGSS.MS-PS1-5

Which of the following best describes the Law of Conservation of Mass?

• Matter can be created and destroyed.

• Matter can change forms but is neither created nor destroyed.

• Energy can be converted into mass.

• Mass can be converted into energy.

Tags

NGSS.MS-PS1-5