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8090 [49]
3 years ago
13

Is butter melting onto toast a chemical or a physical

Chemistry
1 answer:
jonny [76]3 years ago
6 0

Answer: "physical change" .

________________________________________________________

This would be a "physical change" . ________________________________________________________

<u>Note</u>: This would change from a "solid" to a "liquid" / mere rearrangement of molecules/ NOT a new chemical substance—hence, a "physical change".

________________________________________________________

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Compare the volume of 14.1 g of helium to 14.1 g of argon gas (under identical conditions).
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The Volumes can be calculated from Masses by using following Formula,

                                        Density  =  Mass / Volume
Solving for Volume,
                                        Volume  =  Mass / Density

Mass of Both Gases  =  14.1 g

Density of Argon at S.T.P  =  1.784 g/L

Density of Helium at S.T.P  =  0.179 g/L

For Argon:
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                                        Volume  =  7.90 L

For Helium:
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                                        Volume  =  78.77 L
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