How many moles of sodium are in its 85 g?

Which best describes why nh4+ can form an ionic bond with cl-?

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point