Uranium-238 decays spontaneously to produce helium and thorium-234. Why is uranium considered an element rather than a chemical compound of helium and

thorium?

What is the correct equation for cellular respiration?

What are the chemical names of these compounds? ke: mg3n2: reset next

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.