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melamori03 [73]
3 years ago
12

I need help writing a LAB REPORT about NATURAL SELECTION

Chemistry
1 answer:
LekaFEV [45]3 years ago
5 0

Answer:

Translate from Ukrainian.

У цей приклад я візьму селекції пшениці. Коли ми будемо говорити про селекцію цього злака, то ми можемо отримати меньшу собівартість, та вартість вирощування. Збільшена урожайність, та менша потреба в гербіцидах, пестицидах, та інсектицидах це теж наслідок. Тому селекція це майбутнє!

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What type of reactive intermediate is formed in the reaction of an alkene with aqueous acid to give an alcohol?
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Answer:

The intermediate is carbocation.

Explanation:

The reaction of alkene with an acid to give alcohol is an electrophilic addition reaction.

In electrophilic reaction, the alkene is being attacked by an alkene.

in case of aqueous acid reaction with alkene , the electrophile is [H⁺].

When the proton attacks the alkene it generates carbocation.

The carbocation generated is formed based on stability of carbocation.

The mechanism is shown in the figure.

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3 years ago
At which point does a planet move most slowly in its orbit , at aphelion or perihelion
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Answer:

aphelion

Explanation:

A planet moves with constantly changing speed as it moves about its orbit. The fastest a planet moves is at perihelion (closest) and the slowest is at aphelion (farthest).

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2 years ago
Increasing the temperature of a solution will slow down the dissolving/dissolution of the solute.
expeople1 [14]

Answer:

False

Explanation:

It will actually speed it up

7 0
3 years ago
pure potassium hydrogen phthalate is used for the standardization of the sodium hydroxide solution. suppose that the potassium h
12345 [234]

Answer:

the reported molar concentration of the sodium hydroxide solution will be too high.

Explanation:

The term "standardization" in science or in analytical Chemistry simply means the process involved in the determination of a standard or the concentration of a particular substance.

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So, let me explain the answer. The reported molar concentration of the sodium hydroxide solution will be TOO HIGH because the potassium hydrogen phthalate is NOT completely dry. The weight of the moisture will create an additional weight which will increase the weight of potassium hydrogen phthalate in the solution

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