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MrRa [10]
3 years ago
15

Write the formula the alkenes that contain four,six,eight and ten carbon atoms​

Chemistry
2 answers:
grin007 [14]3 years ago
7 0
The general formula for alkenes is CnH2n
So, if it has 4 carbon atoms it would be C4H8
Six carbon atoms - C6H12
Eight - C8H16
Ten - C10H20
raketka [301]3 years ago
7 0

Answer:

??????????????????????????

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Given the reaction: 2Al + 3H2SO4 → 3H2 + Al2(SO4)3 The total number of moles of H2SO4 needed to react completely with 5.0 moles
love history [14]
2 mol Al - 3 mol H₂SO₄

5 mol Al - x mol H₂SO₄

x=5*3/2=7.5

n(H₂SO₄)=7.5 mol
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3 years ago
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Equilibrium systems exist throughout nature.<br> True or False??
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I think the answer is true
6 0
4 years ago
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is a polyprotic acid. Write balanced chemical equations for the sequence of reactions that carbonic acid can undergo when it's d
Burka [1]

Answer:

H₂CO₃   H₂O  ⇄  HCO₃⁻  +  H₃O⁺          Ka1

HCO₃⁻  +  H₂O  ⇄  CO₃⁻²  +  H₃O⁺        Ka2

CO₃⁻²  +  H₂O  ⇄  HCO₃⁻   +  OH⁻       Kb1

HCO₃⁻  +  H₂O  ⇄   H₂CO₃  +  OH⁻     Kb2

Explanation:

Formula for carbonic acid is: H₂CO₃

It is a dyprotic acid, because it can release two protons. We can also mention that is a weak one. The equilibrums are:

H₂CO₃   H₂O  ⇄  HCO₃⁻  +  H₃O⁺          Ka1

HCO₃⁻  +  H₂O  ⇄  CO₃⁻²  +  H₃O⁺        Ka2

When the conjugate strong bases, carbonate and bicarbonate take a proton from water, the reactions are:

CO₃⁻²  +  H₂O  ⇄  HCO₃⁻   +  OH⁻       Kb1

HCO₃⁻  +  H₂O  ⇄   H₂CO₃  +  OH⁻     Kb2

Notice, that bicarbonate anion can release or take a proton to/from water. This is called amphoteric,

6 0
3 years ago
Hydroboration can occur when alkenes react with borane. Borane is highly unstable so it exists as diborane or is stabilized with
weeeeeb [17]

Hydroboration addition of borane to a compound across the double bond.

<h3>What is hydroboration?</h3>

The reaction that is called hydroboration could be carried out with an alkene or an alkyne as the case maybe. In each case, the reaction involves the addition of borane to a compound across the double bond. The reaction could further proceed to produce an alkanol.

Let us restate that like most of the organic reactions, this reaction occurs in a sequence of steps and each step of the reaction has a way of bringing us closer to the end product of the entire steps of the reaction take in proper order

As shown in the image attached to this answer, the reaction was carried out in DMS in order to stabilize the borane. We have shown the borane to be a reactant as it adds across the double bond to yield the product.

Learn more about hydroboration:brainly.com/question/11655454

#SPJ1

6 0
2 years ago
HELP ME PLEASE THIS IS TIMED
Dovator [93]

Answer:

a cold front

Explanation:

A warm front brings fog, but a cold front brings clouds that form from dry air. A warm front brings thunderstorms, but a cold front brings widespread snowfall.

6 0
4 years ago
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