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Bezzdna [24]
3 years ago
9

Which events represents a chemical change ?

Chemistry
2 answers:
8_murik_8 [283]3 years ago
5 0
D milk turning sour 
the other options are physical changes
yawa3891 [41]3 years ago
3 0
Hihi!

The answer would be D. milk turning sour! What happens when milk goes sour is it<span> ferment lactose at room temperature and which turns it into lactic acid. More acid means more hydrogen ions, a lower pH and a </span>sour<span> taste. Lower pH change the structure of proteins like casein, which gives </span>milk<span> its whiteness, so it curdles into clumps called curds! It's pretty gross!</span>

I hope I helped!
-Jailbaitasmr
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Identify the intermolecular attractions for dimethyl ether and for ethyl alcohol. Which molecule is expected to be more soluble
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Answer:

See explanation

Explanation:

All molecules possess the London dispersion forces. However London dispersion forces is the only kind of intermolecular interaction that exists in nonpolar substances.

So, the only kind of intermolecular interaction that exists in dimethyl ether is London dispersion forces.

As for ethyl alcohol, the molecule is polar due to the presence of polar O-H bond. In addition to London dispersion forces, dipole-dipole interactions and specifically hydrogen bonding also occurs between the molecules.

Because ethyl alcohol is polar, it is more soluble in water than dimethyl ether.

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