When iron nail is dipped in copper suphate solution ,the blue colour of copper sulphate changes to green . Explain the reason with the help of a chemical equation.

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

Which of the following molecules is polar? c3h7oh c2h5cooh