An alkene A undergoes addition with Hbr to give B. When B is heated with sodium in presence of dry Ether give 2,3 dimethylbutene. Identify A and B.

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Word equation for k(s) +h2o(l) yield koh (aq) + h2