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quester [9]
3 years ago
14

How do you classify chemical reactions

Chemistry
1 answer:
lakkis [162]3 years ago
7 0

Explanation:

Chemical reactions occur when substances are transformed into other substances.

chemical reactions are generally categorized into four basic types:

  • Combination or Synthesis- This involves the formation of a single product from two or more reactants.
  • Decomposition or cracking: this is the formation of the of two or more products from a single reactant.
  • Single replacement or single displacement - in this reaction type one substance is replacing another.
  • Double replacement or double decomposition - involves an actual exchange of partners to form new compounds .

Learn more:

Chemical reaction brainly.com/question/3953793

#learnwithBrainly

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Write a variable expression that represents the following word phrase: three more than two times the difference of x and one.​
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Convert the wordphrase to expression

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\\ \rm\longmapsto 2x-2+3

\\ \rm\longmapsto 2x+1

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What would be the major product obtained from hydroboration–oxidation of the following alkenes?
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Answer:

a. 3-methylbutan-2-ol

b. 2-methylcyclohexan-1-ol

Explanation:

For this reaction, we must remember that the hydroboration is an <u>"anti-Markovnikov" reaction</u>. This means that the "OH" will be added at the <em>least substituted carbon of the double bond.</em>

In the case of <u>2-methyl-2-butene</u>, the double bond is between carbons 2 and 3. Carbon 2 has two bonds with two methyls and carbon 3 is attached to 1 carbon. Therefore <u>the "OH" will be added to carbon three</u> producing <u>3-methylbutan-2-ol</u>.

For 1-methylcyclohexene, the double bond is between carbons 1 and 2. Carbon 1 is attached to two carbons (carbons 6 and 7) and carbon 2 is attached to one carbon (carbon 3). Therefore<u> the "OH" will be added to carbon 2</u> producing <u>2-methylcyclohexan-1-ol</u>.

See figure 1

I hope it helps!

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Therefore, the answer to this item is the rate of the reaction becomes faster. 
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