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evablogger [386]
3 years ago
5

Select the correct answer.

Chemistry
1 answer:
Artist 52 [7]3 years ago
3 0
I think c cause if he is in a relationship that’s abusive he needs to speak up before it goes way worst.
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1.
Ede4ka [16]

Answer:

A.

Explanation:

Miners were happy due to the result of the gold rush. they labored very hard for very little profit. Working in the Yukon Territory was not safe. To reach it, the ground had to be dug. Then the dirt had to be removed to get the gold.

In paragraph 2, what does the phrase "miners of all shapes and sizes" mean that many people were invited. This included food, clothing, transportation equipment, etc.

8 0
3 years ago
Which scenario would cause a covalent bond to form?
Ymorist [56]
Searching for this question, I found the options on the internet.
"1.<span />Two atoms share electrons so they can fill their outer shells<span>2.The constant motion of electrons and the creation of charge imbalances bonds two molecules together3.A hydrogen atom with a slight positive charge is attracted to a negative charge of another molecule or atom4.One atom loses one or more electrons and the other atom gains one or more electrons"

The correct answer would be number 1. A covalent bond is achieved when two atoms share electrons from their outer shell so that they have a full outer shell leading to the electronic configuration balance they need.</span>
5 0
3 years ago
Click the "draw structure" button to launch the drawing utility. under certain reaction conditions, 2,3−dibromobutane reacts wit
REY [17]

Answer:

Explanation:

According to this. Let's analize the possible products a, b and c.

First, the problem states that we have 2 eq. of base, For this case, let's assume it's KOH. Now, As we are doing a reaction with base, means that this reaction can only take places under conditions of SN2 and E2, a fast reaction that is taking place in only 1 step.

With this in mind, let's analyze product a. This states that it has two sp hybridized carbon, in other words, a triple bond between two carbons. So the product is with no doubt, an alkyne.

Product b has only one sp hybridized carbon, which means that this carbon should cannot be an alkyne because we need two carbon atoms. The only way to have one atom of C sp hybridized, is with two double bonds, so product b would have to a alkene with two double bonds.

Product c do not have sp hybridized carbon, therefore, it only has two double bonds in two different Carbon atoms, so it's another alkene with two double bonds, but in two different atoms of carbon.

Picture attached show the product a, b and c. Hope this can help

4 0
3 years ago
Who is the Scientist that came up with the idea of natural selection?
tatiyna
The scientist that came up with the idea of natural selection was Charles Darwin.
8 0
2 years ago
Ethylene enters a reversible, isothermal, steady-flow compressor at 1 bar and 280 K, and exits at 40 bar. Find the required comp
antiseptic1488 [7]

Answer:

Required compressor work W=8560.44  KJ/Kmol

Explanation:

Given that

Initial pressure = 1 bar

P_1=1\ bar

Final pressure = 40 bar

P_2=40\ bar

Process is isothermal and T=280 K

We know that ,work done in isothermal process given as

W=P_1V_1\ln \dfrac{P_1}{P_2}

given taht gas is ideal so

P V =m R T

W=mRT\ln \dfrac{P_1}{P_2}

R for ethylene

R=0.296 KJ/kg.K

Now by putting the values

W=mRT\ln \dfrac{P_1}{P_2}

W=1\times 0.296\times 280 \ln \dfrac{1}{40}

W= -305.73 KJ/kg

Negative sign indicates that work done on the system.

Required compressor work W=305.73 KJ/kg

Molar mass of ethylene M= 28 Kg/Kmol

So W= 305.73 x 28  KJ/Kmol

W=8560.44  KJ/Kmol

Required compressor work W=8560.44  KJ/Kmol

5 0
3 years ago
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