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Lerok [7]
2 years ago
5

Identify the type of wave that would be located at Point A below.​

Chemistry
1 answer:
aleksklad [387]2 years ago
4 0
Short wave is the answer sorry if Kate
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Nitrogen-13 has a half-life of about 10 minutes. How much of a 320g sample of N-13 would remain after 40 minutes?
lubasha [3.4K]

Answer:

The half-life of a radioisotope describes the amount of time it takes for said isotope to decay to one-half the original amount present in the sample.

Nitrogen-13, because it has a half-life of ten minutes, will experience two half-lives over the course of the twenty minute period. This means that 25% of the isotope will remain after this.

0.25 x 128mg = 32mg

32mg of Nitrogen-13 will remain after 20 minutes.

5 0
3 years ago
A variation of the acetamidomalonate synthesis can be used to synthesize serine. The process involves the following steps: Ethox
Alex73 [517]

Answer:

See detailed mechanism in the image attached

Explanation:

The mechanism shown in detail below is the synthesis of serine in steps.

The first step is the attack of the ethoxide ion base on the diethyl acetamidomalonate substrate giving the enolate and formaldehyde.

The second step is the protonation of the oxyanion from (1) above to form an alcohol as shown.

Acid hydrolysis of the alcohol formed in (3) above yields a tetrahedral intermediate, a dicarboxyamino alcohol.

Decarboxylation of this dicarboxyamino alcohol yields serine, the final product as shown in the image attached.

5 0
3 years ago
How many neutrons are in an atom of molybdenum-96 (Mo-96)?
Sergio [31]
There are 54 neutrons in molybdenum -96
3 0
2 years ago
Chlorine is more reactive than nitrogen why​
OLga [1]

But nitrogen is inert at room temperature whereas chlorine is highly reactive, the reason is: Nitrogen exists as N triple bond N at room temperature while chlorine exists as Cl single bond Cl at room temperature. Since the bond dissociation energy of triple bond is larger than that of single bond.

4 0
2 years ago
In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery.
Sedaia [141]

Answer:

Explanation:

1 mole of Fe require 2 Moles of NiO(OH)

so for 4.25 mol of Fe and 6.70 mol of NiO(OH), Fe is the limiting reagent.

1 mole produces 1 mole of Fe(OH)2

4.25 moles will produce 4.25 moles of Fe(OH)2

5 0
2 years ago
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