0.260 mole of H2O contains how many H2 molecules?

0.260 mole of H2O would contain 1.56575679e+23 H2 molecules.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg