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AnswA. SEB.PbyCED.1. Choose the most correct option.A. A sample of pure water, whatever thesource always containsmass of oxygen and 11.1 % by mass ofhydrogen.a. 88.8 b. 18 c. 80 d. 16B. Which of the following compounds canNOT demonstrate the law of multipleproportions ?a. NO, NO, b. CO, CO,c. H,O,H,O, d. Na, S, NaFC. Which of the following temperaturewill read the same value on celsius andFahrenheit scales.a.- 40°b. +40°c. -80°d. -20°D. SI unit of the quantity electric current is

Answer»

A.(a)88.8B.(c)Na2S,NaFC.(a)-40



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