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AfilCa [17]
2 years ago
10

(20 POINTS) I NEED IT TODAY!

Chemistry
1 answer:
Dafna11 [192]2 years ago
5 0
Please stop scamming people it clearly says it’s ten points
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Benzene contains six carbon atoms bonded in a ring. which best describes these bonds?
Lapatulllka [165]
The benzene molecule has the molecular formula C6H6
.
Sometimes it is represented as a molecule with three doble bonds and three single bonds. But that does not count for the fact that experimentally all the bonds are equal: same length and same strength.

The six carbon bonds are equal because there is not preference for the valence electrons to attach to one or othe neighbor carbon, so at the electrons delocalize inside the molecules and form a uniform cloud around the six carbon atoms.

This is the effect named resonance and thas is why the molecule of benzene instead of being represented with some three single bonds and three doble bonds is represented with a circle (a ring) inside the molecule which represents an intermediate kind of bond shares by all the carbon atoms.

This structure was discovered (literally dreames as some texts tell) by Kekulé. 

 


5 0
3 years ago
Read 2 more answers
A sample of neon occupies a volume of 752 ml at 25 0
lyudmila [28]
V_{initial} = 752\:mL
T_{initial} = 25.0^0C
converting to Kelvin
TK = TC + 273
TK = 25.0 + 273 → TK = 298.0 → T_{initial} = 298.0\:K
V_{final} = ? (in\:milliliters)
T_{final} = 50.0^0C
TK = TC + 273
TK = 50.0 + 273 → TK = 323.0 → T_{final} = 323.0\:K

By the first Law of Charles and Gay-Lussac, we have: 
\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }

Solving:
\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }
\frac{ 752 }{ 298.0 } = \frac{ V_{f} }{ 323.0 }
Product of extremes equals product of means:
298.0* V_{f} = 752*323.0
298.0 V_{f} = 242896
V_{f} = \frac{242896}{298.0}
\boxed{\boxed{V_{f} \approx 815.08\:mL}}\end{array}}\qquad\quad\checkmark
5 0
3 years ago
Lithium (Li) atoms have ______ orbitals.
Hoochie [10]

Answer:

there are 3 electrons in a lithium atom. Looking at the picture, you can see there are two electrons in shell one and only one in shell two.

Explanation:

5 0
3 years ago
Use the image to answer the question.
liberstina [14]

Answer:b

Explanation: it’s in the picture just go counterclockwise

7 0
3 years ago
Read 2 more answers
When was the "Permian Era"?
klemol [59]

Answer:

298.9 million years ago - 251.902  million years ago

Explanation:

It might be in the 2011 Earth Science Review Packet so maybe go check that out

4 0
3 years ago
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