Describe the changed that happened in the crayon and candle when they cooled after 3 to 5 minutes.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Which terms are used to identify pure substances

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds