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spayn [35]
3 years ago
10

Question 21 (2 points)

Chemistry
2 answers:
m_a_m_a [10]3 years ago
8 0

Answer:

i would say sensory memory, aka muscle memory.

Explanation:

melamori03 [73]3 years ago
4 0

Answer:

Sensory Memory

Explanation:

It's just like riding a bike. One your muscles have memorized the movements yiu cant forget how to do it.

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Using your knowledge of reagents that react with alkenes, what would be a reagent that you could use to check and see if the hyd
igomit [66]

Answer:

An halogen addition reaction, particularly bromine addition, could be used to check if the hydrogenation has completed.

Explanation:

The aim is to find a way to check if the hydrogenation process of an alkene has completed. So the logic should be use a reaction that needs the participation of the double bound of the alkene, and therefore shouldn't take place in the process has finished.

A simple organic reaction is the halogen addition reaction, which occur between the halogen molecule and the double bond of the alkene. Basically, the pi electrons of the double bond attacks a relatively electrophilic halogen atom following a mechanism that leads to the addition of two halogen atoms to the double bond. As a consequence the alkene transforms into an haloalkane.

Also, a commonly used halogen is bromine, as it has a reasonable reactivity and it has red colour, which allows to monitor the progression of the reaction.

Taking all this in account, we can say that using a bromine addition reaction to the alkene it's a good option to check the completion of the hydrogenation.

Note that the bromine will react only if the double bond is present. So, if the hydrogenation has completed, the reaction won't occur. Using bromine will be the best option, as it is red coloured. That means that is we add bromine to an incomplete hydrogenation, as it will react with the alkene, the colour should disappear.

In other words, to check if the hydrogenation reaction has completed, we should add bromine and see what happens to the colour. If it doesn't change, then the hydrogenation reaction has completed.

3 0
3 years ago
What are five objects that are luminous
Nastasia [14]
Some examples:
- the sun
- a flashlight turned on
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...hope i helped :)
5 0
3 years ago
Show me step by step solution
Cloud [144]
Ok I may be young but combine the two reactions to create a compund
7 0
3 years ago
5pts. Chemistry multiple choice​
aleksandrvk [35]

Answer:

C. Xenon

Explanation:

The question only requires you to use your visual skills to identify the unknown gas. Look at the spectra of unknown gas and xenon, are they not identical? SInce they are same, the unknown sample must be xenon.

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2 years ago
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Is it kinetic or potential energy Or frequency and wavelength
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