In the reaction 2Al(s)+ 6 HCl(aq)= 2AlCl3(aq)+3H2(g) If 37.0 moles of Al are reacted with excess HCl and 12.5 moles of H2 are formed, what is the percent yield of the reaction?

The modern periodic table has groups.

Which of these conditions most likely produces an unstable isotope?

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?