How many kj of energy are released in this process
A 37.60 g sample of liquid aluminum at 955.0 oC is poured into a mold and allowed to cool to 23.0 oC. How many kJ of energy are released in this process?
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If a single layer of copper atom is 0.270 nm thick (atomic radius of copper = 0.135 nm), how many layers of copper atoms are in the galvanized coating?
When a 0.1 M aqueous ammonia solution is tested with a conductivity apparatus, the bulb glows dimly. When a 0.1 M hydrochloric acid solution is tested, the bulb glows brightly.
You have received three shipments of iron ores (impure iron sample)of the following weights: 2852, 1578, and 1877 lbs. There is anuncertainty on each weight of ± 5 lb.
A mixture of calcium oxide, CaO, and calcium carbonate, CaCO3 that had a mass of 3.454 g was heated until all the calcium carbonate was decomposed according to the following equation.
What is the maximum height achieved if a 0.500 kg mass is thrown straight upward with an initial speed of 55 m*s^-1? Ignore the effect of air resistance.
There are two compounds of titantium and chlorine. one compound contains 31.04% titanium by mass, and the other contains 74.76% chlorine by mass.
If the potential on the outer surface of the membrane is +71.6 mV greater than that on the inside surface, how much charge resides on the outer surface?
The atmospheric pressure on Clouds Rest in Yosemite is only 523mmHg. Given that the Hvap of water is 40.67 kj/mol, calculate the temperature at which water will boil on Clouds Rest.
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