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3 years ago

#1: How many valence electrons are in the outermost shell of all halogens?

Chemistry

1 answer:

Kipish [7]3 years ago

3 0

<span>#1: How many valence electrons are in the outermost shell of all halogens?
</span>c

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. Which law of motion relates the action of a stretched rubber band

storchak [24]

Answer:

newtons 3rd law of motion

Explanation:

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3 years ago

Aryan want to deposit silver on an iron spoon using silver nitrate as electrolyte. Which terminal of the battery he should conne

34kurt

Silver from the anode gets dissolved to reach the cathode, where the spoon will be plated.

<h3>What is electroplating?</h3>

Electroplating is a way of electrolysis, where a thin layer of metal is used to plate a determined object. It is a kinda process to purify a material you want.

The anode contains the metal you want to plate with, in this case, the Ag.

The anode contains the half-reaction of oxidation so:

Ag(s) → Ag ⁺ (aq) + e⁻

In the cathode, you have the spoon, which it takes place the half-reaction of reduction:

Ag ⁺ (aq) + e⁻ → Ag(s)

The electrolytic cell, where the redox reaction takes place, must be filled with a AgNO₃ solution.

Silver from the anode gets dissolved to reach the cathode, where the spoon will be plated.

Learn more about the electroplating here:

brainly.com/question/20112817

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2 years ago

Provide the name(s) for the tertiary alcohol(s) with the chemical formula C6H14O that have a 4-carbon chain. Although stereochem

pochemuha

Answer:

Explanation:

A tertiary alcohol is a compound (an alcohol) in which the carbon atom that has the hydroxyl group (-OH) is also bonded (saturated) to three different carbon atoms.

Based on the question, the only <u>tertiary alcohol that can result from C₆H₁₄O that have a 4-carbon chain</u> is

2-hydroxy-2,3-dimethylbutane

H OH H H

| | | |

H - C - C - C - C - H

| | | |

H CH₃ CH₃ H

From the above, we can see that the carbon atom having the hydroxyl group is also bonded to three other carbon atoms. And since we aren't considering stereochemistry, this is the only tertiary alcohol we can have with a 4-carbon chain

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3 years ago

Calculate the change internal energy (ΔE) for a system that is giving off 65.0 kJ of heat and is performing 855 J of work on the

ollegr [7]

Answer: -64.1 kJ.

Explanation:

According to first law of thermodynamics:

$\Delta E=q+w$

$\Delta E$ =Change in internal energy

q = heat absorbed or released

w = work done or by the system

w = work done by the system= $-P\Delta V$ {Work is done by the system is negative as the final volume is greater than initial volume}

w = -855 Joules = 0.855 kJ (1kJ=1000J)

q = -65.0 kJ {Heat released by the system is negative}

$\Delta E=-65.0J-(-0.855J)=-64.1kJ$

Thus the change internal energy (ΔE) for a system that is giving off 65.0 kJ of heat and is performing 855 J of work on the surroundings is -64.1 kJ.

6 0

3 years ago

Can you answer it please?!

aksik [14]

Answer:

Explanation:

1. NaCl Sodium Chloride

2. KI Postassium Iodide

3. MgF2 Magnesium Flouride

4.MgO Magnesium Oxide

5. Na2O2

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3 years ago