Which squirrel do you think is better suited for the environment, the gray one or the white one? and why
1 answer:
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Answer : The correct option is, (B) no double bonds.
Explanation :
Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.
In the Lewis-dot structure the valance electrons are shown by 'dot'.
As we are given that the structure of the compound containing 1 carbon and 4 chlorine atoms.
Thus, the molecule is,
As we know that carbon has '4' valence electrons and chlorine has '7' valence electrons.
Therefore, the total number of valence electrons in = 4 + 4(7) = 32
According to Lewis-dot structure, there are 8 number of bonding electrons and 24 number of non-bonding electrons.
From the Lewis-dot structure we conclude that there are 4 single bonds are surrounding the central atom of this ion there is no double or triple bonds are present.
Hence, the correct option is, (B) no double bonds.
Answer:
0.161 moles
Explanation:
Given parameters:
Mass of Fe = 18g
Unknown:
Number of moles of Fe₂O₃ = ?
Solution:
To solve this problem, we have to work from the known to the unknown specie.
One cogent point we need to take from this problem is that oxygen gas is in excess. The Fe reacting is therefore the limiting reactant which implies that it will determine the extent of the reaction.
Now, the known specie is Fe;
The balanced reaction equation is shown below;
4Fe + 3O₂ → 2Fe₂O₃
Proceed to find the number of moles of Fe given;
Number of moles of Fe =
Molar mass of Fe = 56g/mol
Number of moles of Fe = = 0.32mole
From the balanced reaction equation;
4 moles of Fe produced 2 moles of Fe₂O₃
0.32 moles of Fe will produce = 0.161 moles of Fe₂O₃