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Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of Zn and H+ in the balanced reaction? Zn^2+(aq) + NH4+(aq) yields Zn(s) + NO3-(aq)
determine the emf of a fuel cell that oxidizes hydrogen according to the reaction2h2 g o2 g --gt 2h2o lunder the
calculate the number of NaCl formula units formed when 176 Na atoms and 98 Cl2 molecules react?
What length of a cylindrical piece of tungsten wire having a radius of 3.71 mm has a mass of 61.3 g? The density of tungsten is 19.25 g/cm3.
assume you dissolve .297 g of the weak acid benzoic acid in enough water to make 105 mL of solution and then titrate the solution with .141 M NaOH. What are the concentrations of Na+ at the equivalence point?
hexane is a hydrocarbon a molecule containing only carbon and hydrogen with a molecular weight of 86.18 gmol a density
The temp of the water and that of the gas are identical at 26°C. How many moles of Helium have been evolved?
an aerosol spray can with a volume of 441 ml contains 3.09 g of propane gas as a propellant. what volume would this
A polluted water sample is suspected of being contaminated with one of the following; soap, ABS Surfactant, or LAS. In soft water, the sample has a very high BOD relative to its TOC.
A 10.0 g sample of krypton has a temperature of 25°C at 575 mm Hg. What is the volume, in milliliters, of the krypton gas?
Draw the kekule structure of each of the following compounds. if cis/trans isomers exist, draw both and indicate the geometry of each.
Write the half-cell reaction for the oxidation. Write the half-cell reaction for the reduction. Write the balanced equation for the cell reaction. Keep substances in the order given in the original equation.
The electron-domain geometry is tetrahedral. The molecular geometry is trigonal pyramidal. d) The electron-domain geometry is tetrahedral. The molecular geometry is trigonal planar. e) The electron-domain geometry is tetrahedral. The molecular geo..
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