If the mystery element Unknownium has 4 isotopes, Un-504, Un-501, Un-503, and Un-506. The relative abundance of Un-504 is 25%, Un-501 is 15%, Un-503 is 20% and Un-506 is 40%. Calculate the average atomic mass. a
505.2
b
503.7
c
504.15
d
506.01

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

Which of the following pressures is equal to 760 mm hg? 2.0 atm 101.3 pa 101,300 kpa 101,300 pa

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.