What is the correct formula for a compound containing Be and PO 4 Show your work or explain how you balanced the charges.

How many neutrons does a atom of cobalt have?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

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