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conclusion of the topic?
What is purity criteria.
A hydrocarbon is burnt completely in excess oxygen.it is found that 5.0g of the hydrocarbon gives 14.6g carbon dioxide and 9.0g of water.knowing that relative molecular mass of the
copper reacts with oxygen to form two oxides es x and y on analysis 1.535 g of x yielded 1.365 g of copper and 1.450 g of y yielded 1.160 g of copper(1) determine the chemical for
Im trying to figure out the mass of 41 molecules of SO2, but i keep getting it wrong.
General Anesthetics: General Anesthetics depress the central nervous system to like an extent that all sensitivity to pain or feeling is gone, that is they make unconsciousnes
what element is not grouped with others in a family? what is its usual atomic structure?
4Be9+2He4-6C12+0n1
Analysis show that nickel oxide has formulla ni .98 O 1.00 what fraction of the of nickel exist as ni+3 & Ni +2 Ans) ni+2=95.91 and ni+3=4.09
seawater contains 0.75g of Fe+3 per kilogram of water. What is the concentration of Fe_3 in ppm?
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