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Chemistry, 21.06.2019 15:10
Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.
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Which element is the least metallic between cadmium, silver, zinc, or iron?
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What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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