How many grams of diborane will react with 7.5 mol of O2

As you move from right to left on the periodic table the atomic radius fill in the blank

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

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