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How many moles of ammonia , NH3 , are contained in 6.21 times 10^24 molecules of ammonia
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What is common about these molecules? a.their atoms are held together by covalent bonds. b.they are all made up of the same two atoms. c.their atoms are held together by ionic bonds. d.they are all made up of oxygen atoms only.
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When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.
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A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159
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Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa
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How many moles of ammonia , NH3 , are contained in 6.21 times 10^24 molecules of ammonia...
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