What other types of evidence might chemists use to support claims that they have synthesized a particular substance?

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

The number at the end of an isotope’s name is the number.

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h