Take about 10 mL of distilled water (or rain water) and 10 mL ofhard water (from a tubewell or hand-pump) in separate test tubes.n Add a couple of drops of soap solution to both.n Shake the test tubes vigorously for an equal period of time andobserve the amount of foam formed.n In which test tube do you get more foam?n In which test tube do you observe a white curdy precipitate?

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?

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?

Which answer would provide the most detailed and accurate description of the observations for this reaction?Group of answer choicesThe test tube contains both a white, cloudy liquid and a clear, colorless liquid.The test tube contains a white liquid and a clear, colorless solid.The test tube contains a white solid floating in a clear, colorless liquid.The test tube contains a clear, colorless liquid with a white solid that has sunk to the bottom.

Take about 2 g barium hydroxide in a test tube. Add 1 g of ammonium chloride and mixwith the help of a glass rod. Touch the bottom of the test tube with your palm.

How do you use eggs to create a foam?*1 pointheat them quicklybeat air into the whitesheat the eggs slowly while mixinguse sugar to stabilize the mixture