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svlad2 [7]
3 years ago
5

A compound has the formula c8h8 and does not contain any double or triple bonds. all the carbon atoms are chemically identical a

nd all the hydrogen atoms are chemically identical. draw a lewis structure for this molecule.
Chemistry
1 answer:
Anastasy [175]3 years ago
5 0
<span>Answer: Cubane, C8H8 It "sorta" looks like this. ....H.........H ......\......../ H.....C - C ...\../.|.../.| ....C - C.C- H .... |.....|./ ....C - C .../.........\ H............H Imagine a cube of carbon atoms, with a single hydrogen attached at each of the 8 corners. That way we have complete symmetry, since all of the bonds, carbons and hydrogens have the identical environment.</span>
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How do i know if a reaction is exo/endothermic?? help please.
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Answer:

Explanation: in exothermic reaction heat is released out

In endothermic reaction heat is absorbed

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What is the value of x in the measure of the angle?
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2 years ago
The speed of Train A is 88 km/hr, and the speed of Train B is 96 km/hr. Based on this information, which of the following statem
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2 years ago
A chemical reaction is shown below:
BabaBlast [244]

Answer:

Mass = 8.46 g

Explanation:

Given data:

Mass of water produced = ?

Mass of glucose = 20 g

Mass of oxygen = 15 g

Solution:

Chemical equation:

C₆H₁₂O₆ + 6O₂     →   6H₂O + 6CO₂

Number of moles of glucose:

Number of moles = mass/molar mass

Number of moles = 20 g/ 180.16 g/mol

Number of moles = 0.11 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 15 g/ 32 g/mol

Number of moles = 0.47 mol

now we will compare the moles of water with oxygen and glucose.

               C₆H₁₂O₆           :            H₂O

                   1                   :              6

                 0.11                :           6/1×0.11 = 0.66

                   O₂               :            H₂O

                   6                   :              6

                 0.47                :           0.47

Less number of moles of water are produced by oxygen thus it will limit the yield of water and act as limiting reactant.

Mass of water produced:

Mass = number of moles × molar mass

Mass = 0.47 mol  ×18 g/mol

Mass = 8.46 g

8 0
3 years ago
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