Which of the following statement is Wrong? (A)Iron can displaces copper from copper sulphate solution.
(B)Iron cannot displaces zinc from Zinc sulphate solution
(C)Zinc can displaces Aluminium from Aluminium sulphate solution
(D)Zinc cannot displaces Aluminium from Aluminium sulphate solution.
Please answer and thank you

What must happen before a body cell can begin mitotic cell division

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved