(a) Which of these pieces of apparatus is most suitable to measure 70cm^{3} of the solution? (b) (i) Complete the empty boxes to name the pieces of apparatus below.

(ii) Which method of separation, A, B or C, would be most suitable to obtain pure water from the solution?

(c) Describe how crystals of salt could be quickly obtained from the solution.

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