Choose the best answer. The 6.0 M HCl solution must be added to the crucible in the fume hood because a) the wet hydrogen gas released can cause explosion.

b) the HCl used is very concentrated.

c) it is aafer to do the experiment in the fume hood rather on the bench.

d) the HCl can react quickly with the zinc solid in the fume hood.

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?