Examlex
Why is an aqueous solution of table salt (NaCl) a good conductor of electricity but a solution containing an equal molar concentration of table sugar (C12H22O11) is not?
Pencil Sharpeners
Devices used to sharpen pencils by shaving away their worn surfaces.
Total Surplus
The combined benefit to all parties involved in a transaction, equal to the sum of consumer and producer surplus.
Dishwashers
Machines for cleaning dishes and utensils automatically.
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