Chemistry, 01.07.2019 17:00, hobbs4ever1
A50.51g sample of a compound made from phosphorus and chlorine is decomposed. analysis of the products showed that 11.39 g of phosphorus atoms were produced. answer using three significant figures. what is the percent by mass of phosphorus? % what is the percent by mass of chlorine? %
Answers: 2
Chemistry, 22.06.2019 01:40, natannale
Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.
Answers: 1
Chemistry, 22.06.2019 05:10, hadellolo8839
How many miles of water are produced if 5.43 mol pbo2 are consumed
Answers: 1
Chemistry, 22.06.2019 07:40, sadcase85
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
Answers: 1
A50.51g sample of a compound made from phosphorus and chlorine is decomposed. analysis of the produc...
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