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gregori [183]
2 years ago
8

The largest number of stable nuclei have an ________ number of protons and an ________ number of neutrons.

Chemistry
1 answer:
postnew [5]2 years ago
8 0

Answer:

did it give you answers to in blanks

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2 years ago
An unknown compound displays singlets at δ 2.1 ppm and 2.56 ppm in the ratio of 3:2. what is the structure of the compound?
olasank [31]

1) As can be seen from any 1H NMR chemical shift ppm tables, hydrogens which have δ values from 2ppm to 2.3ppm are hydrogens from carbon which is bonded to a carbonyl group. From this, we can conclude that our hydrogens belong to the type, but from 2 different alkyl groups because of 2 different signals.

 

2) So, one alkyl group is CH3 and second one can be CH or CH2.

 

3) If we know that ratio between two types of hydrogens is 3:2, it can be concluded that second alkyl group is CH2. 


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7 0
3 years ago
What is the volume of 35.0 g of propylene glycol if the density of propylene glycol is 1.036 g/ cm3?
Len [333]
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What is TRUE of a mixture?
jolli1 [7]

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It retains the properties of the substances that make it up

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