Physics, 01.12.2021 02:50 camiserjai1832
When 0. 5 g mixture of k2co3/khco3 treated with excess hbr solution, the mass of kbr residue left is 0. 75 g. What is the percent composition by mass of k2co3?.
Answers: 3
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If a balloon is taken outside on a very cold day, what will occur?
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An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.
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The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?
Answers: 3
Physics, 23.06.2019 05:10
An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror
Answers: 2
When 0. 5 g mixture of k2co3/khco3 treated with excess hbr solution, the mass of kbr residue left is...
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