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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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n_{H_2O}=1.5molH_2O

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Hello,

In this case, the undergoing chemical reaction is:

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Next, we identify the limiting reactant by computing the available moles of ethane and the moles of ethane consumed by 60.0 grams of oxygen:

n_{C_2H_6}^{available}=15g*\frac{1mol}{30g} =0.50molC_2H_6\\n_{C_2H_6}^{reacted}=60.0gO_2*\frac{1molO_2}{32gO_2}*\frac{2molC_2H_6}{7molO_2} =0.536molC_2H_6

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