Chemistry, 14.09.2019 08:30 mttttttthhhhhhh551
Question 8 if the mass percentage composition of a compound is 72.1% mn and 27.9% o, its empirical formula is selected correct answer. d. mn304 d. mn304
Answers: 3
Chemistry, 22.06.2019 00:30
Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?
Answers: 3
Chemistry, 22.06.2019 17:10
Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]
Answers: 2
Chemistry, 22.06.2019 21:00
One similarity and one difference between an element and a mixture of elements
Answers: 1
Question 8 if the mass percentage composition of a compound is 72.1% mn and 27.9% o, its empirical f...
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