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const2013 [10]
3 years ago
7

A student uses a lever and fulcrum to lift a rock off the ground.

Chemistry
2 answers:
chubhunter [2.5K]3 years ago
8 0
I think it’s b hope this helps
Sedaia [141]3 years ago
7 0
it has to me b because it shows what they did in this part
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Answer:

Part A

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Part B

AlBr3 is the Lewis acid and NH3 is the Lewis base.

Part C

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Explanation:

A Lewis acid is any specie that accepts a lone pair of electrons. Ag^+, AlBr3 and AlCl3 all accepted lone pairs of electrons according to the three chemical reaction equations shown. Hence, they are Lewis acids.

A Lewis base donates a lone pair of electrons. They include neutral molecules having lone pair of electrons such as NH3 or negative ions such as Cl- .

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