Chapter 2 Chemical Reaction

The process of rearranging atoms to form new substances is known as a...?

• physical change

• chemical reaction

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NGSS.MS-PS1-2

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The reactants in the pictured chemical equation are:

• 
• 

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-1

The products in the pictured chemical equation are:

• 
• 

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NGSS.MS-PS1-2

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You know that a chemical reaction is occurring here between Iodine and Aluminium because you see....(Pick 3)

• purple colour

• ice formation

• a yellow precipitate

• smoke

• fire

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NGSS.MS-PS1-2

We know that there was a chemical reaction occurring when 2 clear liquids were mixed together, due to the production of a ______?

• solid

• liquid

• gas

• precipitate

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NGSS.MS-PS1-2

A precipitate is a _____ that forms when 2 liquids react together.

• solid

• liquid

• gas

• plasma

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NGSS.MS-PS1-2

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How is a chemical change different from a physical change?

• there is no difference

• a chemical change creates a new substance

• a physical change creates a new substance

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NGSS.MS-PS1-2

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Which of the following is a compound?

• Co

• C

• O₂

• CO₂

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NGSS.MS-PS1-1

A physical change is...?

• is just like a chemical reaction

• a change that results in the formation of new chemical substances

• when substances undergo a physical change without alteration of their chemical composition

Which example is a chemical change?

• baking powder fizzing

• ice melting

• water boiling

• sugar cube dissolving

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NGSS.MS-PS1-2

NGSS.MS-PS1-5