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Copper is obtained from ores containing the minerals, azurite,Cu3(CO3)(OH)2, chalcocite, Cu2S, chalcopyrite CuFeS2,covelite CuS, cuprite Cu2O and malachite Cu2CO3(OH)2 which mineral has the lowest copper content as a percent mass
What will be the velocity of the escaping electrons under these conditions? What is the de Broglie wavelength of the escaping electrons?
A pair of enantiomers is named below. For each stereoisomers, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds.
Calculate [H+] and the pH of the following solutions
If the speed limit is 75 mph, could the driver of the car reasonably evade a speeding ticket by invoking the Heisenberg uncertainty principle?
Iridium-192 is one radioisotope used in brachytherapy, in which a radioactive source is placed inside a patient's body to treat cancer. Brachytherapy allows the use of a higher than normal dose to be placed near the tumor while lowering the risk o..
Suppose that the microwave radiation has a wavelength of 12.7 cm. How many photons are required to heat 200. mL of coffee from 25°C to 62°C?
A 322 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 635 mmHg. Calculate the moles of Ar present.
The half-life for the reaction at 550 C is 81.3 seconds. How long does it take for 78.5% of a phosphine sample to decompose?
synthesize 3-heptanone. Use proper reagents and justify your answer with proper arrow mechanisms
What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
The flask was then shaken until the solution was uniform. A 60.0ml- sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100.ml of the final solution?
Write the balanced molecular equation for the combustion of methanethiol in an excess supply of oxygen.
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