Only answer in 1-2 sentences.. that’s fine :) (WILL MARK BRAINLIEST) will appreciate it thanks!

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium

If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?