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Marysya12 [62]
2 years ago
10

(RLLY NEED HELP) What is caused by friction between two objects?

Chemistry
1 answer:
viva [34]2 years ago
4 0
Second one i think.
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3 years ago
What structural feature of lecithin allows it to behave like an emulsifying agent?
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The fatty acids, which are hydrophobic (afraid of water), makes this substance more similiar to fats and represent the non-polar part of the lecithin.
The phosphate group is the polar portion of the molecule and it's the negatively charged. The choline is positively charged, which readily dissolve in water<span>.

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