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3 years ago

The structure of two compounds are shown: which statement is true?

Chemistry

1 answer:

ankoles [38]3 years ago

8 0

Answer:

Explanation:

The first one. They are both alcohol groups

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Draw the conjugate bases of pyrrole and cyclopentadiene. Explain Why is the sp3 hybridized C―H bond of cyclopentadiene more acid

olga_2 [115]

Answer:

The explanations are given in the section below

Explanation:

First step:

We need to understand the acid-base equilibrium of the reaction. Bear in mind that the conjugate acid-base pairs are species that differ by one proton. Furthermore, one is a Lewis acid (meaning the ability to protons) and the conjugate base (accepts protons)

A simple conjugate base is obtained by removing one proton from an acid as shown below:

HX ⇄ A⁻ + H⁺

The diagrams are as follows:

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3 years ago

Why polythene bags create big problem in garbage disposal ?

Mariana [72]

Answer:

Polythene bags are so lightweight and aerodynamic, they are easily picked up and carried by the wind. They can escape from trash bins, recycle bins, garbage trucks, and landfills, and end up littering the landscape.

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Explanation:

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4 years ago

100 PTS+BRAINILIEST: Why does it get colder as you go higher through the atmosphere, if you are getting closer to the sun??

sattari [20]

Answer/Explanation:

Heat from the sun hits the ground and is absorbed. The higher you go, it gets more colder due to the fact that the air doesn't hold onto the radiation as it goes straight through the ground, which is why the top of mountains are very cold, and people are able to die in minutes.

8 0

2 years ago

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Menthol is a crystalline substance with a peppermint taste and odor. When 1.48 g of menthol is dissolved in 25.0 g of cyclohexan

pishuonlain [190]

Answer:

Molar mass of menthol is 155.86 g/mol

Explanation:

Let's apply the colligative property of freezing point depression:

ΔT = Kf . m . i

As menthol is an organic compound we assume the i (Van't Hoff factor as non electrolytic, so i = 1)

m = mol /kg (molality)

Kf = Cryoscopic constant, in this case, for cyclohexane

ΔT = T° freezing of pure solvent - T° freezing solution

7.90°C = 20.8°C / m . m . 1

7.90°C / 20.8 m/°C = m

0.380 m = molality

0.380 moles are the moles of solute (menthol) dissolved in 1kg of solvent, but our mass of solvent is 25 g.

Let's convert the g of solvent to kg to work with molality

25 g = 0.025 kg

molal . solvent mass = moles of solute

0.380 mol /kg . 0.025kg = 9.49×10⁻³ moles

Now, we have the moles and the mass of solute. Let's determine the molar mass of menthol (grams / moles)

1.48 g / 9.49×10⁻³ m = 155.86 g/m

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4 years ago

What is the name of this ion :Cu++

kicyunya [14]

The name of the ion is Copper.

<u>Explanation</u>:

Copper is a chemical element symbolized as Cu. It has different ions, one of which is Cu(2+) and Cu(1+).
Copper on losing 2 electrons forms the ion Cu(2+)
Copper(2+) is an ion that carries double positive charge.
It plays the role of a cofactor.
It is also more stable than the single positive ion Cu(1+)

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4 years ago

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