Specific Heat H = 14.30 J/g C
Specific Heat He = 5.193 J/g C
How much heat energy is needed to raise the temperature of 340 g of
a sample of hydrogen gas from 20 to 45 degrees?
What would it be for all the same data but helium gas instead?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules