How can you prepare 100.0 ml of 0.400 m cacl2 from a stock solution of 2.00 m cacl2.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

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.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f