A chemist pumps hydrogen gas (H2) from a tank into a reaction vessel containing 0.734 mol O2.
The gases react to form water. If all of the
available O2 reacts, how many moles of H2 are
used?
0 0.367 mol H2
0.734 mol H2
1.47 mol H2

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