Sodium Carbonate (Na₂CO₃)and Potassium Carbonate (K₂CO₃)react with Water to Form

Q133: What is the difference between a skin

Q134: A commonly used abrasive that is NOT

Q135: Fabric softeners are<br>A)potassium salts of long chain

Q136: Quaternary salts with two long carbon chains

Q137: The color of human hair depends partly

Q139: Water softeners<br>A)remove "hard" ions.<br>B)destroy "hard" ions.<br>C)modify "hard"

Q140: A perfume's fragrance is just a bit

Q141: The universal pigment used in paint today

Q142: Which generally does NOT need to be

Q143: The only necessary ingredient in shampoo is<br>A)water.<br>B)conditioner.<br>C)fragrance.<br>D)detergent.