!URGENT! How many moles of HCl (Hydrogen Chloride) would be needed to make 0.75 moles of H2?
Zn + 2HCl → ZnCl2 + H2

Identify a strong intermolecular force of attraction between an alcohol

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1: