MS-PS1-5

Front

What does the Law of Conservation of Mass state?

Back

Matter is neither created nor destroyed in a chemical reaction.

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NGSS.MS-PS1-5

Front

What are the products of the chemical reaction that produces CO2 and H2O?

Back

The products are CO2 (carbon dioxide) and H2O (water).

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NGSS.MS-PS1-1

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NGSS.MS-PS1-5

Front

How many NO2 molecules can be produced from the given reactants?

Back

4 NO2 molecules.

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NGSS.MS-PS1-5

Front

What is a chemical reaction?

Back

A process in which substances undergo chemical changes that result in the formation of new substances.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

If a reaction starts with 20g of reactants, how much product should it produce?

Back

A total of 20g of product.

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NGSS.MS-PS1-5

Front

What is a reactant?

Back

A substance that enters into a chemical reaction.

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NGSS.MS-PS1-5

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What is a product in a chemical reaction?

Back

A substance formed as a result of a chemical reaction.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Define a chemical equation.

Back

A representation of a chemical reaction using symbols and formulas.

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NGSS.MS-PS1-1

Front

What is the significance of balancing a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

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NGSS.MS-PS1-5

Front

What is the difference between an endothermic and exothermic reaction?

Back

Endothermic reactions absorb energy, while exothermic reactions release energy.

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NGSS.MS-PS1-4