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Pepsi [2]
3 years ago
14

Girls are usually completely physically mature by _____ years old.

Chemistry
2 answers:
fomenos3 years ago
6 0

Answer:

17

Explanation:

edge 2020 i just took the topic test

krok68 [10]3 years ago
5 0

Answer:

a 17 bc it is how it works

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Which one of the following electron transitions does not correspond to an absorbtion of a quanta of light?
ziro4ka [17]
N = 4 to n = 3 is the right answer, so it' none of the above
8 0
3 years ago
What is the major organic product obtained from the following reaction?
trapecia [35]

The correct option is (b)

NaNH2 is an effective base. It can be a good nucleophile in the few situations where its strong basicity does not have negative side effects. It is employed in elimination reactions as well as the deprotonation of weak acids.Alkynes, alcohols, and a variety of other functional groups with acidic protons, such as esters and ketones, will all be deprotonated by NaNH2, a powerful base.Alkynes are deprotonated with NaNH2 to produce what are known as "acetylide" ions. These ions are powerful nucleophiles that can react with alkyl halides to create carbon-carbon bonds and add to carbonyls in an addition reaction.Acid/base and nucleophilic substitution are the two types of reactions.Using the right base, terminal alkynes can be deprotonated to produce a carbanion.A good C is the acetylide carbanion.The acetylide carbanion can undergo nucleophilic substitution reactions because it is a potent C nucleophile. (often SN2) with 1 or 2 alkyl halides with electrophilic C to create an internal alkyne (Cl, Br, or I).Elimination is more likely to occur with 3-alkyl halides.It is possible to swap either one or both of the terminal H atoms in ethylene (acetylene) to create monosubstituted (R-C-C-H) and symmetrical (R = R') or unsymmetrical (R not equal to R') disubstituted alkynes (R-C-C-R').

Learn more about NANH2 here :-

brainly.com/question/12601787

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7 0
2 years ago
How many grams of CO2 are used when 7 g of oxygen are produced
lara [203]
308 grams of co2 is used
4 0
2 years ago
If you fill a glass to the brim with ice water and the ice melts, what will happen?
Natalija [7]

Hello There!

When the ice melts, the water level will drop slightly but not much.

REMEMBER Ice expands so when ice melts, it shrinks back to the state of being liquid.

7 0
3 years ago
Read 2 more answers
Please help I’ll mark you brainiest if it’s correct. There is 3 answers to this one!
Rama09 [41]

Answer:

c,e,f

Explanation:

Judging by what i tried to find out about this reaction, it seems that won't take place, though it could be wrong.

7 0
2 years ago
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