Describe one chemical test and one physical test for pure water.
A physical test for pure water is testing the boiling or freezing point. Pure water will boil at 100 degrees Celsius and freeze at 0 degrees Celsius. One chemical test is to use cobalt chloride paper - the paper will turn from blue to pink in the presence of water.
SN
Related Chemistry GCSE answers
All answers ▸25 cm3 of NaOH was titrated with 0.050 mol dm-3 HCl. NaOH + HCl --> NaCl + H2O. 21.5 cm3 HCl neutralised 25 cm3 NaOH. Concentration of NaOH in mol dm-3?
What 2 observations can be made when lithium reacts with water, and why?
What is oxidation?
What are the 3 main variables within a scientific experiment?