Chemical and Physical Changes Quiz

Count the number of atoms for each element in the formula CH₄O₆.

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NGSS.MS-PS1-1

A student mixes sodium bromide with chlorine to create sodium chloride and bromine. He starts with 14 grams of sodium bromide and ends with 12.5 grams of sodium chloride and 3 grams of bromine. How much chlorine did he start with?

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

A ______ ______ alters the appearance or state of a substance without changing its chemical composition (e.g., melting ice)

• Chemical change

• Physical change

• Global warming

• Color change

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NGSS.MS-PS1-4

A ______ _____ results in the formation of new substances with different chemical properties (e.g., rusting iron).

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

True or FalseMelting ice, tearing paper, dissolving sugar in water is an example of physical changes

• True

• False

• True or False: burning wood, rusting metal, baking a cake is an example of physical change

• True

• False

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

• A ____ ____ is a physical change because it only alters the state of matter (solid, liquid, gas) without changing the substance's chemical composition.

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NGSS.MS-PS1-4

Select 4 signs that can tell whether a chemical reaction has occurred

• Formation of a precipitate

• Phase change

• • Color change

• Formation of a gas

• Energy change

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NGSS.MS-PS1-2

Select three things that happen in every chemical reaction

• Energy is absorbed or released

• • Bonds are broken

• • Bonds are strengthened

• Bonds are formed

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NGSS.HS-PS1-4

• ________ are the starting substances in a chemical reaction, found on the left side of the equation.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5