D gas, liquid or solid impurities from a mixture. e waterseparated byA sublimationB evaporation to dryness.using a separating funnelD fractional crystallizationOn of waterItration andstallation19. Classify each of the following changes as eithera physical or a chemical change.18. A mixture of oil and water can be easily(a) The addition of water to quicklime (ie the(b) The melting of candle wax(c) The change in colour of zinc oxide fromwhite to yellow and vice versa during heatingand after cooling respectively.(d) The dissolution of copper in concentratedtrioxonitrate(V) acid(e) The dissolution of common salt in waterin The hardening of cement by the absorptionof carbon (IV) oxidesiaking of lime)Co, andusing the

D gas, liquid or solid impurities from a mixture. e waterseparated b

1.	D gas, liquid or solid impurities from a mixture. e waterseparated byA sublimationB evaporation to dryness.using a separating funnelD fractional crystallizationOn of waterItration andstallation19. Classify each of the following changes as eithera physical or a chemical change.18. A mixture of oil and water can be easily(a) The addition of water to quicklime (ie the(b) The melting of candle wax(c) The change in colour of zinc oxide fromwhite to yellow and vice versa during heatingand after cooling respectively.(d) The dissolution of copper in concentratedtrioxonitrate(V) acid(e) The dissolution of common salt in waterin The hardening of cement by the absorptionof carbon (IV) oxidesiaking of lime)Co, andusing the
Answer» tion:there are do MANY QUESTIONS PLEASE tell one QUESTION