Take 5mL of the temporary hard water and add 2mL of soap solution. Shake vigorously.What is the result?

Take another 10mL of the temporary hard water and boil for 5 minutes. Filter, then add 5mL of soap solution to the filtrate and shake.What is the result?________________________________________________________________________________________Is the water hard?________________________________________________________________________________________Why is this type of harness called “temporary hardness”?________________________________________________________________________________________________________________________________________________________________________________What other substances cause temporary hardness?________________________________________________________________________________________________________________________________________________________________________________Write the equation for removal of temporary hardness by heating.________________________________________________________________________________________Give 3 other methods of removing temporary hardness in water.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Continue adding successive 2mL portions of soap solution, shaking after each addition,until suds that persist for some time are formed.How much soap solution was added in all?________________________________________________________________________________________Why did lather finally form after repeated addition of soap solution?________________________________________________________________________________________________________________________________________________________________________________

Take about 10 mL of water each in two test tubes.n Add a drop of oil (cooking oil) to both the test tubesand label them as A and B.n To test tube B, add a few drops of soap solution.n Now shake both the test tubes vigourously forthe same period of time.n Can you see the oil and water layers separatelyin both the test tubes immediately after youstop shaking them?n Leave the test tubes undisturbed for some timeand observe. Does the oil layer separate out?In which test tube does this happen first?

Take two test tubes with about 10 mL of hard water in each.n Add five drops of soap solution to one and five drops of detergentsolution to the other.n Shake both test tubes for the same period.n Do both test tubes have the same amount of foam?n In which test tube is a curdy solid formed?

If you don't evaporate any of the water, identify what happens to the eighth spoonful of bath salts you add.It dissolves into the solutionIt falls to the bottom of the beaker as sedimentIt forms crystals