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How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00 mL of 2.0 M HCl?
Fluoride, in the form of sodium silicofluoride (Na2SiF6), is commonly added to municipal drinking water to prevent tooth decay. It is generally added at a level of 1.0 mg/L,
what is the solubility of silver chloride in gl ksp1.6x1010 in a 6.5x10-3m silver nitrate
when electrons move from the fourth energy level to the second energy level, they emit visible light. explain why the light emitted when an electron makes this move in a sodium atom is a different color than the light emitted
In our kinetics lab we used sodium thiosulfate as a mild reducing agent. Explain why this reagent would be a reducing agent. Also, what about potassium dichromate K2Cr2O7. Why is it such a good oxidizing agent
what are the names of the quantity measured by each of seven SI base units and the SI symbols of the unit?
Given non pourous material A having a density of 2.35 and non pourous material B having a density of 2.41 what is the theoretical density of material A+B when there is 75 weight % of material A and 25 weight % of material B when combined
Calculate the work done in joules, when 4.5 L of argon expands to 11 L at constant temperature against an external pressure 545 torr.
The equilibrium constant for the Haber process is Kc = 0.105. A two liter flash is filled with 0.500 moles of NH3 and allowed to come to equilibrium. What are the values of [NH3], H2] and [N2]
Calculate the value of Ka for the acid, Enter it in the space provided below as a number in scientific notation with 3 significant figures, Ex: 1.82E-5
The diffusion coefficient versus reciprocal of the absolute temperature for the diffusion of iron in chromium. Determine values for the activation energy and preexponential.
question 1 which of the following best summarizes the main causes of water pollution today?increased runoff driving
If we assume that the atmosphere of the earth is an ideal gas mixture, then each component is described by a separate barometric equation. This model predicts that the concentrations of heavier molecules, and therefore their partial pressures, dec..
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