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Vlad [161]
3 years ago
11

Which of the following would be a reasonable synthesis of CH3CH2CH2CH2OH?Group of answer choices

Chemistry
1 answer:
vampirchik [111]3 years ago
8 0

Answer:

B. 1-Butene rightarrow (1) BH3: THF (2)H202, OH-

Explanation:

In the hydroboration of alkenes, an alkene is hydrated to form an alcohol with anti-Markovnikov orientation.

the reagent BH₃:THF is the way that borane is used in organic reactions. The BH₃ adds to the double bond of an alkene to form an alkyl borane. Peroxide hydrogen in basic medium oxidizes the alkyl borane to form an alcohol. Indeed, hydroboration-oxidation converts alkenes to alcohols by adding water through the double bond, with anti-Markovnikov orientation.

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Answer:

Solar energy is essentially the light and heat emitted from the sun

5 0
3 years ago
Compare an electrically neutral atom of oxygen and an isotope of oxygen.
Leya [2.2K]
<span>An atom containing an equal number of protons and electrons is electrically neutral, otherwise it has a positive charge if there are fewer electrons (electron deficiency) or negative charge if there are more electrons (electron excess).</span>
6 0
3 years ago
Which half-reaction correctly represents reduction?
Gemiola [76]
Answer choice C. Reduction has its electrons as a reactant.
6 0
3 years ago
Which of the following elements has the largest atomic radius?
adell [148]
<h3>Answer:</h3>

            Potassium has the largest atomic radius.

<h3>Explanation:</h3>

                        Using periodic table trends one can easily compare the atomic radii of elements. The trends in atomic radii are as follow,

Trends in Groups:

                             Moving from top to bottom along the groups the atomic radii increases because as you move from top to bottom the number of shells increases hence, the distance of valence electrons from nucleus also increases and therefore, atomic radius increases.

Trends is Periods:

                             Moving from left to right along the periods the atomic radii decreases. This is because the number of protons and electrons increases but the the valence shell remain the same hence, causing more nuclear charge and more attraction between the valence electrons and nucleus.

<h3>Result:</h3>

           Potassium, Calcium, Cobalt and Nickle all are present in same period. Potassium present at the extreme left will have greater atomic radii of 0.227 nm while Co and Ni at the middle of period will have atomic radii of 0.125 nm each. While, the atomic radius of Calcium next to K is 0.197 nm.

5 0
3 years ago
A chemist is given a sample of the CuSO4 hydrate and asked to determine its the empirical formula. The original sample weighed 4
Firlakuza [10]

Answer: The formula for this hydrate is CuSO_4.5H_2O

Explanation:

Decomposition of hydrated copper sulphate is given by:

CuSO_4.xH_2O\rightarrow CuSO_4+xH_2O

Molar mass of CuSO_4 = 160 g/mol

According to stoichiometry:

(160+18x) g of CuSO_4.xH_2O decomposes to give 160 g of anhydrous CuSO_4

Thus 42.75  g of CuSO_4.xH_2O decomposes to give=\frac{160}{160+18x}\times 42.75g of anhydrous CuSO_4

\frac{160}{160+18x}\times 42.75=27.38

x=5

Thus the formula for this hydrate is CuSO_4.5H_2O

8 0
3 years ago
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