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juin [17]
2 years ago
5

The sparse area surrounding a spiral galaxy is called its

Chemistry
1 answer:
ale4655 [162]2 years ago
7 0

Answer:

Halo

Explanation:

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How many moles of O2 are needed to react with 2.35 mol of C2H2?
Mrrafil [7]
2 C2H2 + 5 O2 --> 4 CO2 + 2 H2O

2.35 mol C2H2 - x mol O2
2 mol C2H2 - 5 mol O2

x =  \frac{2.35 \times 5}{2}  = 5.875 \: mol
answer: 5.875 mol
5 0
4 years ago
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3 years ago
3. What kind of mixture does each mixture have?​
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Answer:

heterogeneous and homogeneous

Explanation:

la po ba abc?

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Consider the reaction below to answer the following questions (4) a. The nucleophile in the reaction is _______ b. The Lewis aci
KATRIN_1 [288]

The question is incomplete, the complete question is shown in the image attached to this answer.

Answer:

a) Br^-

b) FeCl3

c) slower

d) see the first attached image

Explanation:

Aromatic compounds undergo electrophilic substitution sections in the presence of the appropriate electrophile.

In the reaction above, the Br^- nucleophile attacks the Lewis acid FeCl3. Recall that the nitro group is meta directing hence the incoming Br^+ electrophile is directed towards the meta position as shown in the image attached.

Note that the nitro group deactivates the ring towards electrophilic substitution hence the reaction is slower with nitrobenzene than with unsubstituted benzene.

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3 years ago
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Answer:

B. Water will freeze

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