Which element has an equal number of electron pairs and of unpaired electrons within orbitals of principal quantum number 2?

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

What three things does a balanced equation show you?

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?