Write the half equations for the redox reaction of gold + oxygen:

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

How is the use of hydroelectric power related to the sun