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What is the number of electrons transferred in the following equation?
What is the number of moles in the each reaction? what is the molecular weight of each reactant?
what is the reaction when elemental magnesium and elemental copper are placed in an aqueous solution of copper sulfate?
At the same temperature, water has a vapour pressure of 17.5 mmHg. What will be the vapour pressure above this solution?
magnesium undergoes a single displacement raction with hydrochlic acid. how many grams of hydrogen gas will be produced from the reaction of 3.00 g of magnesium with 4.00 g of hydrochloric acid? identify the limiting and excess reactants.
Carbon-14 has a half-life of 5730 yrs. A living organism has an activity of 15.2 counts per minute (cpm) per gram of carbon. If a bone is determined to have an activity of 3.80 cpm per gram of carbon, how old is the bone
an electron is confined to a linear region with a length of the same orderas the diameter of an atom (about 100 pm)
Propane burns in oxygen to produce carbon dioxide and water. c3h8 +5o2 yeilds 3co2 +4h2o Calculate the math of co2 that can be produced if reaction of 44g of propane and suficient oxygen has a 60% yeild.
In places where meteor impacts have occurred, such as Meteor Crater, other distinctly different SiO2 minerals occur, such as stishovite and coesite.
In a study of hydrogen halide decomposition, 0.200mol hydrogen iodide is placed in a 2.00L flask and the temperature raised to 4530C. At equilibrium, [HI] = 0.078M. Calculate Kc.
An aqueous acetic acid solution is 6.0835molal and 8.9660 molar. Define what is the density of the solution. MW(acetic Acid) = 60.05 g/mole.
an 85.0g sample of iron requires 954 j of heat to raise its temperature 25.0c. what is the specific heat of the
Assume that the before-tax required rate of return for Deer Valley is 14%. Compute the before-tax NPV of the new lift and advise the managers of Deer Valley about whether adding the lift will be a profitable investment. Show calculations to suppor..
formaldehyde h2c o is known to all biologists because of its usefulness as a tissue preservative. when pure
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