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Problem- What phase transition is occurring when a black deposit of tungsten metal collects on the inside of a lightbulb whose filament is tungsten metal.
Any expert is able to provide answer for this problem in very short time
The four molecular p orbitals of the four carbon atoms can be lined up parallel in order to create four new molecular orbitals. The electrons in the new molecular orbitals benefit because they are not confined to just one atom.
A 380. mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present.
Solutions of hexane and heptane may be considered to be ideal. At 25°C, the vapor pressure of pure hexane is 20.3 kPa and the vapor pressure of pure heptane is 6.08 kPa The activity relative to a pure liquid standard state is defined as the ratio ..
What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 0.560 mg/L , that total blood volume is 5.5 L , and that 1 mol of succimer binds 1 mol of lead.
Which resonance structure for the SCN- ion and the COS molecule would you expect to be more stable
Limestone (CaCO3) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts with sulfur dioxide to form calcium sulfite
A line in the hydrogen spectrum has a wavelength of 434.5 nm. If this line results from the transition of an electron into the n=2 level explain what was the initial energy state of the electron
How long will it take for 100% pearlite to form at 650 °C and at 600 °C? Estimate the hardness values resulting from these transformations.
The normal boiling point of liquid bromine is 58.8oC, and its molar enthalpy of vaporization is Delta Hvap = 29.6 kJ/mol. (a) When Br2(l) boils at its normal boiling point, does its entropy increase or decrease?
How many millimeters of 0.0700 M EDTA are required to react with 50.0 mL of 0.0140 M Cu2+?, b) With 50.0 mL of 0.0140 M Sc3+?
How many valence electrons are there for the POCl3 molecule? Draw a reasonable Lewis structure for POCl3. Assign formal charges for the atoms in your Lewis structure
Problem- A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 2.30 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Ente..
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