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aivan3 [116]
3 years ago
8

Can someone PLEASE help me! I have missed a few days of school due to sickness and my teacher is making me make up a lab! She ga

ve me some things to study, but Chemistry is NOT one of my strong suits by any means! I only have 3 questions! I will post them separately to save room. Here is the first.
1. List at least two chemical reactions that result in a yellow, orange, or red precipitate. For these reactions list the possible chemical name of the precipitate. What do these reactions (and the others similar to them) have in common?
Chemistry
1 answer:
OLEGan [10]3 years ago
3 0
<span>2,4-dinitrophenylhydrazine (Brady’s reagent) is an important reagent related to hydrazine. Most aldehydes and ketones very readily with this reagent to give the yellow orange and red precipitates of 2,4-dinitrophenylhydrazones.
Unconjugated aldehydes and ketones give precipitates toward the yellow while conjugated compound tend to be deeper colour of red.
The conversion of aldehydes and ketones into hydrazone is an example of the addition-elimination reaction occurring at the unsaturated carbonyl group.</span>
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According to the iupac convention, alkyl substituents on a hydrocarbon chain should be listed in which order?
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According to the iupac convention, alkyl substituents on a hydrocarbon chain should be listed in alphabetical without taking prefixes into name.

A hydrocarbon would be an organic molecule in organic chemistry that is made completely of hydrogen as well as carbon. A good example of group 14 hydrides includes hydrocarbons. In general, hydrocarbons lack color and are hydrophobic. Typically, their faint smells are compared to that of gasoline and lighter fluid.

  • The longest unbroken carbon chain should be found and named.
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Therefore, according to the iupac convention, alkyl substituents on a hydrocarbon chain should be listed in alphabetical without taking prefixes into name.

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I belive it would be Hf (hafanium).

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