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iren [92.7K]
3 years ago
14

I will give brainliest and 76 points

Chemistry
1 answer:
katen-ka-za [31]3 years ago
8 0

Answer:

number 5 is the answer

Explanation:

You might be interested in
How many covalent bonds does carbon form if each of its unpaired electrons participate in one bond?
yulyashka [42]

Four covalent bonds.

<h3>Further explanation</h3>

Covalent (or homopolar) bonds occur based on the use or sharing of electron pairs. Covalent bonds are formed between nonmetallic elements.

We have the electronic configuration of a carbon atom as follows:  

\boxed{ \ _{6}C = 1s^2 \ 2s^2 \ 2p^2 \ or \ [He] \ 2s^2 \ 2p^2 \ }

  • The electronic configuration of carbon is \boxed{ \ 2,4 \ }
  • The electrons are distributed in the 1st and 2nd orbit.  
  • K shell (n = 1) = 2 electrons.
  • L shell (n = 2) = 4 electrons.

From this, we can see that the carbon atom has four unpaired electrons which are in the outer shell, called the valence electron.  

Carbon atoms with four electrons in the outer shell need four more electrons to reach a stable electron configuration such as a noble gas. Therefore, carbon atoms can form four covalent bonds with other non-metal atoms such as hydrogen, oxygen, nitrogen, sulfur, halogens, and even with carbon atoms themselves.

Recall that a carbon atom can form single, double, or triple bonds with other carbon atoms.

<h3>Learn more  </h3>
  1. Flammability as one of the chemical properties brainly.com/question/1767022
  2. About the single bonds in fatty acids brainly.com/question/1386856  
  3. The chemical formula for nitrobenzene brainly.com/question/2861241

Keywords: how many, covalent bonds, carbon, each of its unpaired electrons, participate in one bond, valence, outer shell, orbit, stable, the electronic configuration, non-metal atoms

8 0
3 years ago
Whats the number of moles of O2(g) needed to completely react with 8 moles of CO(g).
slava [35]
A mole of CO2 = 2 moles of O2
8 CO moles x 2 =

16 moles
7 0
3 years ago
The rate of effusion of nitrogen gas (N2) is 1.253 times faster than that of an unknown gas. What is the molecular weight of the
ollegr [7]

Answer:

43.96

Explanation:

Graham's law was applied and the rates of effusion of nitrogen and the unknown gas were compared as shown in the image. The unknown gas is heavier than hydrigen hence it effuses slower than hydrogen as anticipated by Graham's law.

5 0
4 years ago
Type the correct answer in each box.
Luba_88 [7]

Answer:  The weight of the object on earth =441N

Weight of the object on moon = 72N

6 0
3 years ago
The diagram and data below represent gas and the conditions of pressure, volume, and temperature of the gas in a rigid cylinder
Sedaia [141]

Answer:

2.3 L

Explanation:

when you have this eqaution you use P1V1T2=P2V2T1.

since you are looking for volume of gas cylinder that means you are looking for V2.

so you have your given P= 1.0 atm, V=2.5L, T=298K.

They ask you to use STP or standard pressure and temperature.

STP P= 1atm, STP T=273 K

so you are looking for V2 meaning you are going to get V alone so your new equation is P1*V1*TS/ P2* T1= V2

so you now substitue so its now 1*273*2.5/ 1* 298= V

682.5/ 298= V

Lastly V= 2.2902 and you round to tenths so now you have

V= 2.3 L

5 0
3 years ago
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