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Ann [662]
3 years ago
11

SO2 + H2O ---> H2SO3

Chemistry
1 answer:
alexdok [17]3 years ago
8 0
This is the answer i for when I worked it out, it may be right and it may be wrong. I am currently in Pre-AP chem and we just learned this this week and I am in the same boat as you ahaha

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When ethyl acetoacetate (CH3COCH2CO2CH2CH3) is treated with one equivalent of CH3MgBr, a gas is evolved from the reaction mixtur
grigory [225]

Answer:Methane gas is evolved from the reaction mixture.

Explanation:

When ethyl acetoacetate is treated with grignard reagent a carbanion is generated.

There are two acidic hydrogens which are present on the carbon which is in between the ester and the ketone group in ethylacetoacetate.

These two protons are also called active methylene protons and they are very acidic in nature due to the presence of two electron withdrawing substituents that is an ester and ketone.

CH₃MgBr is grignard reagent and it is an organo-metallic copmpound  . Carbon here in CH₃MgBr exists as carbanion  CH3⁻ which is basic enough to abstract the acidic protons present on ethylacetoacetate.

As CH3⁻ abstracts an acidic  proton from ethylacetoacetate it become CH₄ which is methane. As methane is a gas so it is methane gas which is evolved from the reaction mixture.

As  the acidic proton is abstracted from ethylacetoacetate which leads to generation of carbanion and this carbanion is very stable as it can be delocalized on to the two carbonyl groups . As we add aqueous acid to the reaction mixture the carbanion can again be protonated and its protonation would lead to the generation of ethylacetoacetate again.

8 0
4 years ago
Iodine-131 is a radioactive isotope that is used in the treatment of cancer of the thyroid. The natural tendency of the thyroid
Finger [1]

Answer:

a) Binding Energy = 1084.266 MeV

b) Binding energy per nucleon = 8.28 MeV

Explanation:

Binding Energy, BE = \triangle M * 931.5

Where ΔM = Mass defect of Iodine-131

The mass of iodine-131 = 130.906124 u.

Number of protons in Iodine-131 = 53

Number of neutrons in Iodine-131 = 78

Mass of a proton = 1.007276 u

Mass of neutron = 1.008664 u

Total mass of the 53 protons in Iodine-131 = (53*1.007276)

Total mass of the 53 protons in Iodine-131 =  53.39 u

Total mass of the 78 protons in Iodine-131 = (78*1.008664)

Total mass of the 78 protons in Iodine-131 = 78.68 u

\triangle M = (53.39 + 78.68) - 130.906124\\\triangle M = 1.164 u

Binding Energy = 1.164 * 931.5

Binding Energy = 1084.266 MeV

b) Binding Energy per nucleon

The mass of the nucleon of iodine 131 = 130.906124

Binding Energy per nucleon =  1084.266/130.906124

Binding energy per nucleon = 8.28 MeV

5 0
4 years ago
My robolox girlfrien brok upe wit mee :(
Drupady [299]
Good JAHAHAHAHHAHAHAHGAHAHAHA HAHAHAHHAGAGAGGAGAHA
7 0
3 years ago
Read 2 more answers
PLEASE HELP IF YOU CAN​
Kruka [31]

I'm not sure but for those who can help:

<u>Skeleton equation</u>: It's neutralization because acid+base.

HCl + NaOH  =>  H2O + NaCl

7 0
4 years ago
I need help, lots of points to you, please give genuine answers, will mark brainliest.​
PSYCHO15rus [73]

Answer:

this is hard

Explanation:

3 0
3 years ago
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