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Spinel is a mineral that contains 37.9% Al, 17.1% Mg, and 45.0% O, by mass, and has a density of 3.57 g/cm3. The unit cell is cubic with an edge length of 8.09 Å. How many atoms of each type are in the unit cell?
Calculate the pH of the solution resulting from the addition of 20 mL of 0.10 M NaOH to 100 mL of 0.10 M HCN (Ka = 4.9x10^(-10))
6NO2+2H2O=4(HNO3)+2NO. For this equation, how many grams of nitrogen dioxide are needed to react with 3.70mol of H2O? How many grams of nitrogen monoxide are produced when 2.18mol of H2O react?
What is the molecular geometry of a molecule with 3 outer atoms and 2 lone pairs on the central atom
What mass of barium sulfate can be produced when 100.0 ml of a 0.100 M solution of barium chloride is mixed with 100.0 ml of a 0.100 M solution of Iron(III) sulfate
What is the charge on magnesium iodide? What does the charge on the magnesium ion have to do with the number of valence electrons that an atom of magnesium has?
essential to prevent uncontrolled raise of the rate of chain reaction in the nuclear power plant. Can you try to find additional information how rate of chain reaction
whats the anode charge. please include the answer and why and a step process please
Describe the effect that the following procedural changes would have on the percent recovery of acetanilide. Rather than adding 0.5ml portions of boiling solvent to acetanilide, student added 5ml portions
Calculate the wavelength of the photon emitted when an electron makes a transition
how many grams of sodium chloride would be made if 507 g fecl2 were used up in the reaction fecl2 2naoh feoh2s 2nacl
Nuclides below the valley of stability can become more stable through which of the following processes
Put in order the following molecules in terms of the Permeability of the molecule across a membrane by simple diffusion at pH 7.
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