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In an experiment to measure the heat of reaction for the reaction between sodium hydroxide with hydrochloric acid, a student added 50 cm3 of 1.0 M HCl solution to the same volume of 1.0 M NaOH solution in a polystyrene foam cup.
(2007)
Define atomic (covalent) radius.
Define energy level
Useful hydrocarbons are obtained by the fractional distillation of crude oil, which itself has little or no direct use. Hydrocarbons are excellent fuels
Define (i) acid, (ii) conjugate pair, according to the Brønsted-Lowry theory
