Which statement concerning elements is true?

Chemistry

1 answer:

Marina86 [1]2 years ago

7 0

The answer is either number one or two.

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___________ reactions form predominately or exclusively one enantiomer. ____________ is the addition of a single oxygen atom to

ArbitrLikvidat [17]

1) Stereo-selective (or enantioselective) reactions form predominately or exclusively one enantiomer.

2) Epoxidation is the addition of a single oxygen atom to an alkene to form an epoxide.

3) Hydrogenation (or reduction) of an alkene forms an alkane by addition of H₂.

4) Dihydroxylation is the addition of two hydroxy groups to a double forming, a 1,2-diol or glycol.

5) oxidative cleavage of an alkene breaks both the σ and π bonds of the double bond to form two carbonyl groups.

6) Regioselective reactions form predominately or exclusively one constitutional isomer.

7) Syn dihydroxylation results when an alkene is treated KMnO4 or OsO4, where each reagent adds two oxygen atoms to the same side of the double bond.

7 0

3 years ago

A helium filled ballon had a volume of 8.50 L on the ground at 20.0 C and a pressure of 750.0 Torr. After the ballon was release

Marrrta [24]

Answer:

$V_2=12.1L$

Explanation:

Hello!

In this case, according to the given data of volume, pressure and temperature, it is possible to infer this problem can be solved via the combined gas law:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$