Answer:
The stereochemistry of the dienophile is retained in the product.
Explanation:
The main properties of the<em> Diels-Alder reaction</em> are:
- The diene can react only when it adopts the s-cis conformation.
- Electron-donating substituents in the diene increase reaction rate.
- Electron-withdrawing substituents in the dienophile increase reaction rate.
- The stereochemistry of the dienophile and of the diene is retained in the product.
Here's the first one
- The ellipse becomes a straight line
- here's the second one they converge
They don't converge when the eccentricity ratio is zero, instead the diverge.
So "the foci converge is not true"
Hope this helps!!
Hey :)
Ernest Rutherford produced the nuclear model of the atom
In 1909 Ernest Rutherford designed an experiment to test the plum pudding model
In the experiment, positively charged alpha particles were fired at thin gold foil. Most alpha particles went straight through the foil
This evidence led Rutherford to suggest a new model for the atom, called the nuclear model
Hope this helps :)
Since one atmosphere is 29.9213 inches of mercury, we can simply find this by taking 29.9213 and multiplying that by 1.24. You end up with 37.102412 inches of mercury. I hope this helps you out, and good luck on the rest of your homework.
The fumes of acetic acid go to the floor instead of ceiling.
The reason behind the answer is that the density of acetic acid fumes is higher than the density of air (almost twice) that is equal to only 1
.
Thus, the fumes of acetic acid go to the floor.