Tag: chemistry
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The fundamentals of quality assurance; everything you need to know.
Quality assurance is what we do to get the right answer for our purpose. The answer should have sufficient accuracy and precision to support subsequent decisions. There is no point in spending extra money to obtain a more accurate or more precise answer if it is not necessary. What are the basics of quality assurance?…
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Enlighten Knowledge Exam; Chemistry MCQS (set 4)
QUESTIONS 1. 3NH3 is A. Three moles of Ammonium B. Six moles of Ammonium C. Three moles of Ammonia D. Six moles of Ammonia 2. The following are physical changes except A. Melting of candle wax B. Freezing of water C. Rotting of leaves D. Dissolving of common salt in water 3. The abnormally high…
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Solution of ammonium carbonate and bromine water solution preparation in the laboratory.
Solution of ammonium carbonate and bromine water solution preparation in the laboratory. Ammonium carbonate solution; The molecular formula of ammonium carbonate solution is (NH4)2CO3. Ammonium carbonate solution serves as a bench reagent in the laboratory. It is used in fire extinguishers and textile dyeing. Ammonium carbonate is also used in baking powder and ceramics. Ammonium…
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