Question

Answer all these questions NOT ONE and I'll mark you brainliest

Answer 1

1.

a) The ice-cold water enables the water vapours to condense and you obtain pure water in the second test tube.

b) If the glass arm does not reach far down into the second test tube, the water vapours may escape out of the test tube. So, it must reach down to obtain the pure water.

c) i) Evaporation occurs in the first test tube.

ii) Condensation occurs in the second test tube.

d) This seperation method is called distillation.

e) Salt crystals will be obtained from the first test tube.

2.

a) B contains only one basic colour.

b) A contains all basic colours.

c) Red is the most soluble in propanone.

3.

i) The component of the solution that is dissolved in the other, usually present in lesser amount, is called solvent.

ii) When a mixture is filtered, the particles left on the filter paper are called residue.

iii) Two or more liquids that dissolve in each other and form a homogeneous mixture are called miscible liquids.

iv) The pure substance obtained from the condensation of vapours in distillation is called distillate.

v) The paper used to seperate mixture of different coloured pigments using chromatography is called chromatogram.