<span>This example represents the challenge of survival of the fittest. In this situation, the trees have a distinct advantage due to their above average height. This puts them in the best position to gain the resources that they need to survive, most notably, the sun. The smaller plants, however, do not have this advantage, and lose out to the trees.</span>
One aluminum atom will cost 0.84 × 10⁻²³ cents.
Explanation:
Aluminium costs 85 cents per 453.592 grams.
number of moles = mass / atomic weight
number of moles of aluminium = 453.592 / 27 = 16.8 moles
To calculate the number of aluminum atoms we use the Avogadro's number:
if 1 mole of aluminum contains 6.022 × 10²³ aluminum atoms
then 16.8 moles of aluminum contains X aluminum atoms
X = (16.8 × 6.022 × 10²³) / 1 = 101.17 × 10²³ aluminum atoms
Now, taking in account the aluminium price, we devise the following reasoning:
if 101.17 × 10²³ aluminum atoms costs 85 cents
then 1 aluminum atom costs Y cents
Y = (1 × 85) / (101.17 × 10²³) = 0.84 × 10⁻²³ cents
Learn more about:
Avogadro's number
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This is probably wrong but i think the answer is 1,979,381.44
Answer:
They are located in the equatorial positions
Explanation:
To know this, we need to draw the chair conformation of the cyclohexane.
As you can see in picture 1, we have a cyclohexane with the two methyl in position 1 and 3, both of them with a wedge bond meaning they are in cis position.
The next structure is the chair conformation of the 1,3-dimethylcyclohexane. Facing in cis position they could be either in axial positions (Facing upward) or equatorial positions (Facing to the sides).
Now both of them are in cis position, however, one of them is the most stable conformation. This one would be the equatorial positions. Why is that structure more stable than the axial positions? basically, because when you have a cyclohexane with radicals in position 1 and 3, you can have the 1,3-diaxial interactions which is an interation that is usually repulsive between those substituent. Therefore, this repulsion of the methyls, it's similar to steric hindrance and make this conformation being less stable than the conformation in the equatorial positions, because you can see there are no interaction there and no steric hindrance. Therefore the methyl groups should be located in the equatorial positions to do the most stable conformation. See picture attached.
Answer:B
Explanation:
The solid and the gas are forming a brand new solid which is a chemical change
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