Which of the alkyne addition reactions below involve(s) an enol intermediate? 1) halogenation.
2) hydrogen in the presence of a metal catalyst.
3) hydroboration/oxidation.
4) none of the above.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

What can be found in the ionosphere