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Pick one of the transition element and talk about the element's physical, chemical properties, preparation, discovery, and industrial application of that element.
A mixture of calcium carbonate, CaCO3, and barium carbonate, BaCO3, weighing 5.4 g reacts fully with hydrochloric acid, HCl (aq), to generate 1.39 L CO2 (g), measured at 50°C and 0.904 atm pressure. Calculate the percentages by mass of CaCO3 and B..
How many molecules of acetylene (HCCH) react with 146 molecules of oxygen to produce carbon dioxide and water?
If 4 liters per minute of 100 ppm 1,1,2-trichloroethane solution is to be treated in a packed tower air stripper, what air flow is required if equilibrium is assumed and 100% removal
a gas has a volume of 95 mL at a pressure of 930 torr. what volume will the gas occupy if the pressure is increased to 970 torr?
What substances are present after the reaction is over? (Hint: Write a balanced chemical equation for the reaction first.) How many grams of water are formed?
Calculate the amount of heat in kj required to convert 157.7g of water to steam at 100 dgree.
A steady current was passed through molter CoSO4 until 8.85 g of metallic cobalt was produced. Calculate the number of coulombs of electricity used.
Evaluate reversibility of a process where an ideal monoatomic gas is first slowly compressed 10-fold by a gradually increasing external pressure (gas remains in thermal equilibrium with the surroundings)
Lithium will react with oxygen in a pressurized container to produce solid lithium oxide at 25°C. if 0.130 g Li(s) is placed in a 0.500 L container filled with oxygen at 1.90 atm
Tungsten is usually produced by the reduction of WO3 with hydrojen as shown by the equation; WO3(s) + 3 H2(g) ? W (s) + 3 H2O (g) The enthalpy for the reaction,(delta H rxn ) ?H°rxn is + 114.5 kj. The entropy for the reaction (Delta S rxn) ?S°rxn i..
Explain two unlabelled bottles containing clear, colorless liquids are found in the organic section of the chemical storage room. Explain the physical or chemical tests that could be conducted in order to find out whether the two substances are un..
a mass of 47.5 g of h2os at 273 k is dropped into 225 g of h2ol at 298 k in an insulated container at1 bar of pressure.
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