Chemical Reactions

Our Essential Question:

Our Essential Question:

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Our Essential Question:

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S

Mg

Mg

+

S

1 atom Mg

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1 atom S

MgS 1 molecule MgS

24

32

56

1

1

1

6 x 1023 atoms

6 x 1023 atoms

6 x 1023 molecules

Mix 24 g Mg with 32 g S. Makes 56 g MgS.

I 12

Mg

magnesium 24.31

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16

S

sulfur 32.07

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1. Ice melts. What are the COOL signs of a chemical reaction you observed?

Is it a chemical reaction? _____ How could you prove it?

2. Wood burns. What are the COOL signs of a chemical reaction you observed?

Is it a chemical reaction? _____ How could you prove it?

3. Iron rusts. What are the COOL signs of a chemical reaction?

Is it a chemical reaction? _____ How could you prove it?

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