Calculate the pH and percent ionization of a HC2H3O2 solution with a concentration of 0.500 M. (Ka = 1.8 x10-5)

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

What are transitions between a liquid and gas called? identify which way they are transitioning