Balancing Chemical Equations Quiz

• What is a reactant and product?

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NGSS.MS-PS1-1

NGSS.MS-PS1-5

• 1

• 2

• 3

• 4

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NGSS.MS-PS1-5

What is the law of conservation of mass?

• Mass can be created and destroyed.

• Mass is neither created nor destroyed in a chemical reaction.

• Mass is always destroyed in a chemical reaction.

• Mass is always created in a chemical reaction.

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NGSS.MS-PS1-5

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

• Both A and B

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Which of the following statements is true about the law of conservation of mass?

• The total mass of reactants is equal to the total mass of products.

• The total mass of reactants is greater than the total mass of products.

• The total mass of reactants is less than the total mass of products.

• Mass is irrelevant in chemical reactions.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Tags

NGSS.MS-PS1-5

What is the role of coefficients in a chemical equation?

• They indicate the number of molecules or moles of a substance.

• They indicate the mass of a substance.

• They indicate the volume of a substance.

• They indicate the temperature of a reaction.

Tags

NGSS.MS-PS1-5

• Both A and B

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2