The magnesium and calcium ions present in seawater ([mg2+] = 0.059 m and [ca2+] = 0.011 m) can be separated by selective precipitation with koh. what is the concentration of [mg2+] when ca(oh)2 starts to precipitate? ksp mg(oh)2 = 2.1 x 10-13 and the ksp ca(oh)2 = 4.7 x 10-6

Which statement is best described as a atom

In an effort to address concerns about global warming, a power plant in portland,oregon is designed to take all of its exhaust gases from its boilers and recycle the co2 using the solvay process to make sodium hydrogen carbonate. the reaction is shown below. nh3(g) + h2o(l) + co2(g) + nacl(aq) → nahco3(aq) + nh4cl(aq) how many liters each of nh3 and co2 (both at stp) would be consumed to produce 3.00 kg of sodium bicarbonate? the volume of both nh3 and co2 would be

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this