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The element tin often occurs in nature as the oxide, SnO2. To produce pure tin metal from this sort of tin ore, the ore usually is heated with carbon. This produces pure molten tin, with the carbon being removed from the reaction system as the gaseous byproduct carbon monoxide. Write the unbalanced equation for this process.
One way of solving systems of linear equations is by adding a multiple of one equation to the other. The multiplier for one equation is chosen so that one of the two variables will cancel out in the sum
How can you tell that Cobalt(II) iodide is a binary ionic compound formed by a transition metal with more than one ionic charge?
write a balanced chemical equation for the reaction that occures in the experiment (B) Give the net ionic equation for this reaction
assume you dissolve 2.56g of malic acid c4h6o5 in half a liter of water 500g. calculate the molarity molality mole
15mL of radiator liquid (water + ethylene glycol) from a car has a mass of 15.69g. Is the the density of ethylene glycol greater or less than that of water
A sample of dry air contains 210 mL of oxygen, 780 mL. of nitrogen, and 10 mL of all other gases. What is the pressure in mm of Hg due to the nitrogen if the total pressure was 1000 mm
What is the hydronium ion concentration of a 0.150 M hypochlorous acid solution with Ka=3.5x10^-8. The equation for the dissociation of hypochlorous acid is: HOCl(aq)+H2O>>>H3O+(aq) + OCL-(aq)
what are the electronic configurations of Pb and Pb2+, also Mo and Mo2+. please explain what are their valence electrons.
Calculate the heat capacity of satan, i. e. Ni . if 30.0g of nickel at 100.0 c raises the temperature of 25.0g of water from 22.0 c to 30.8 c . assume no heat loss to the surroundings.
What is the maximum mass of ammonia that can be produced from a mixture of 155.3 g of N2 and 35.98 g of H2? 2. Which element would be left partially unreacted? (enter nitrogen or hydrogen)
the rate constant for the second order -reaction is NOBr(g)------>NO(g)+1/2Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose
Within the Bohr model of the hydrogen atom, the radius of the orbit for the ground state was 5.292 x 10-11 m. Using de Broglie's idea that the circumference of this orbit had to equal the wavelength of the electron
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