Calculate the hydrogen-ion concentration [h+] for the aqueous solution in which [oh–] is 1 x 10–11 mol/l. is this solution acididc, basic, or neutral? show your work. so much! : )

What is the mass of 8 moles of sodium atoms

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)