Answer:
jejjdedjd sidjjejdd jsms
Explanation:
jdjdndjdjjdj jsnssjns jsjsjs
The heat of fusion for water is the amount of energy needed for water to <span>melt. (c)</span>
Answer:
D
Explanation:
- The rate of the Diels-Alder is orders of magnitude faster if there is an electron-withdrawing group on the dienophile. For example, replacing a hydrogen on ethene with the electron-withdrawing group CN results in about a 10^5 increase in the reaction rate.
- Other common electron withdrawing functional groups that will accelerate the Diels Alder reaction of dienophiles include aldehydes, ketones, and esters.
- In short, any functional group conjugated with the pi bond which can act as a pi acceptor will accelerate a Diels-Alder reaction with a typical diene.
- See attachment for graphical explanation.
The actual size of the Solar system is too big to show without making a much smaller model. If someone wants to see the orientation of the planets a model has to be made so we can see it without flying out too space.
a) uniform velocity
b) zero or no acceleration
c) (see picture)
EXPLANATION:
(see picture)