Describing Chemical Reactions

A combination of symbols that represents the elements in a compound.

• chemical formula

• chemical equation

• chemical reaction

• chemical change

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NGSS.MS-PS1-1

Chemical equations use chemical formulas and other symbols instead of words to summarize a reaction.

• true

• false

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NGSS.MS-PS1-5

Give an example of a familiar chemical formula (other than water H2O)

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NGSS.MS-PS1-1

The substances that you start with in a reaction and the substances you get at the end is known as a

• chemical formula

• chemical equation

• chemical reaction

• chemical change

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

The substances you have at the beginning of a chemical equation are called __________.

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NGSS.MS-PS1-5

When the reaction is complete, you have a new substance called a __________.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Describe how to a write out a chemical equation, where do the reactants and products go? How are the separated?

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NGSS.MS-PS1-5

In chemistry a _________, describes a compound.

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NGSS.MS-PS1-1

A chemical equation describes a ________.

• reaction

• product

• formula

• compound

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Describe conservation of mass

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NGSS.MS-PS1-5