Explain why water forms nearly spherical droplets on the surface of a freshly waxed car. Why doesn’t water bead on a clean windshield?
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Explain why water forms nearly spherical droplets on the surface of a freshly waxed car. Why doesn’t water bead on a clean windshield?
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- Why do oil and water mixed together separate into layers?“Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about water that allows you to put sugar or salt in your coffee? To help answer this question, consider the opposite situation: Why do salt scrubs that you buy in a high-end spa consist of large salt crystals in oil?Give some characteristics of ground substance.
- Why must alcohol be diluted with water to about 70 % percent before it could be used as an effective disinfectant. What is the chemistry behind it?A common procedure of for cleaning the grease trap in a sink is to add a product that contains sodium hydroxide. Explain why this worksTo help lower the high temperature of a sick patient, an alcohol rub is sometimes used. Isopropyl alcohol is rubbed over the patient's back, arms, legs, etc., and allowed to evaporate. Why does the procedure work.
- When you mix oil and water they immediately separate because*a). Water is too good for oil b). Both oil and water are polar c). Water is polar and oils are non polar d). Oil is dirty and water is cleanExplain how soap works, include a discussion of the polarity, solubility of both the grease and water, and micelle formation.What is the difference between an antiseptic and a disinfectant?