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Saponification is a process that produces soap, usually from fats and lye. In technical teens, saponification involves base (usually caustic soda NaOH) hydrolysis of triglycerides, which are esters of fatty acids, to form the sodium salt of a carboxylate. In addition to soap, such traditional saponification processes produces glycerol.
Find the number of zeroes in the end of 160!
Determine the sum of the first 16 odd numbers.
A positive number becomes 34 times its reciprocal if 9 is subtracted from it. Find the number.
What is the smallest four-digit number that can be evenly divided by 20, 24, and 36?