One way to make chlorine is to let manganese dioxide, MnO2, react with hydrochloric acid according to the following equation.
4HCl + MnO2 Cl2 + MnCl2 + 2H2O

What is the minimum volume (in mL) of 6.91 M HCl needed to prepare 460.9 mL of dry chlorine when the gas is obtained at 21.0 °C and 750 torr?

mL

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)