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Nimfa-mama [501]
3 years ago
11

Choose one of the statements below that would best complete the following

Chemistry
1 answer:
____ [38]3 years ago
6 0

Answer:

The correct answer is 4 substracting hydride ions from olefins.

Explanation:

The olefins are the unsaturated hydrocarbon also called alkenes that contain one double bond present between 2 carbon atoms.

   On the other hand a carbenium ion is formed when a hydrocarbon loses a hydride ion to form a positively charged product.

  For example allyl cation

               CH2=CH-CH2+

The allyl cation is a carbenium ion formed by the removal of H- ion or hydride ion from the alkene propene.

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Write a balanced half-reaction for the reduction of permanganate ion mno−4 to solid manganese dioxide mno2 in acidic aqueous sol
Svetlanka [38]

The half-reaction includes either the reduction or the oxidation reaction of the redox reactions. In acidic solution permanganate ion will react with hydrogen ion to yield manganese ion and water.

<h3>What are Redox reactions?</h3>

Redox or oxidation-reduction reactions are the chemical reactions in which the oxidation and the reduction of the chemical species occur simultaneously.

Permanganate (VII) ion is a strong oxidizing agent and gets easily reduced to manganese ion in presence of the hydrogen ion in an acidic solution.

The balanced half-reaction for reduction is shown as,

\rm MnO_{4}^{-} \; (aq)+ 8H^{+} \; (aq)+ 5e^{-} \rightarrow Mn^{2+} \; (aq)+ 4H_{2}O \; (l)

Learn more about reduction reactions here:

brainly.com/question/10084275

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8 0
2 years ago
What is the name of this molecule ?
myrzilka [38]
I think its chlorine Im not positive but im 99.9 precent shure

4 0
3 years ago
you know the mass of an object and the force applied to the bject to make it move . Which of Newtons laws of motion will help yo
MAVERICK [17]

Answer:

second law of acceleration

Explanation:

hope this helps :)

8 0
3 years ago
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What is an atomic radius?
Vikki [24]

Explanation:

The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons

8 0
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The entropy of a sample of CO2 increases as the CO2 changes from
andrew-mc [135]
The answer is (4) solid to gas. The entropy is the measurement of disorder. The entropy of CO2 under different status will increase from solid to liquid to gas. So the answer is (4).
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