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ElenaW [278]
2 years ago
15

Giúp mình 2 câu này với ạ

Chemistry
1 answer:
alisha [4.7K]2 years ago
5 0

Answer:it is wrong answer

Explanation:estro man

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As the amplitude decreases in a wave, the energy increases.
Fittoniya [83]

Answer:

False

Explanation:

The relationship between energy and amplitude can be written as eαa^2

This means that the energy of a wave is directly proportional to the square of the amplitude.

7 0
4 years ago
In this lab, you are to carry out the formation of a Grignard reagent from 1-bromo-benzene andits subsequent reaction with solid
yan [13]

Answer:

(A). C6H5Br + Mg(in ether) -----------> C6H5MgBr.

(B). C6H5MgBr + O = C = O -----------> C6H5-COO^- Mg^+ Br.

(C). C6H5-COO^- Mg^+ Br + HCl --------> C6H5-COOH + Mg^+Br(OH).

PRODUCTS=> C6H5-COOH and Mg^+Br(OH).

Explanation:

A Grignard reagent is a reagent that/which is an organometallic compound that is R -Mg- X. The R = alkyl, vinyl or allyl and the X = halogens.

It must be noted that an important reaction of Grignard reagent is its reaction with compounds containing the Carbonyl that is -CO functional group and this kind of Reaction is known as a Grignard Reaction.

So, in this question we are told that;

=> "1-bromo-benzene andits subsequent reaction with solid carbon dioxide (CO2) followed by acidic workup (using HCl asthe acid). "

Thus;

(A). C6H5Br + Mg(in ether) -----------> C6H5MgBr.

(B). C6H5MgBr + O = C = O -----------> C6H5-COO^- Mg^+ Br.

(C). C6H5-COO^- Mg^+ Br + HCl --------> C6H5-COOH + Mg^+Br(OH).

5 0
4 years ago
Current nuclear reactors use a process of controlled _____. <br><br> fission <br> fusion
valentina_108 [34]
I do believe the answer is Fission.

3 0
4 years ago
Read 2 more answers
What is the formula for tin(ll) chromate
Nimfa-mama [501]

Answer:

SnCrO4

Explanation:

Tin has a charge of 2+

Chromate has a charge of 2-,

therefor, the formula is equal.

4 0
4 years ago
Would you find rising air above a warm area of earth's surface or above a cool area
GenaCL600 [577]
Warm because of the earths surface which rises up on to the crust from magma
8 0
3 years ago
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