If 40.0 g of hcl react with an excess of magnesium metal, what is the theoretical yield of hydrogen?
1.11 g
2.22 g
52.2 g
104 g

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

What was bohr’s contribution to the planetary model

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use