What makes a nucleus stable? A. A nucleus is stable if all of the electrons are in the lowest energy
levels.
B. A nucleus is stable if there are fewer neutrons than protons in the
nucleus.
C. A nucleus is stable if the electrostatic and strong nuclear forces
balance out
D. A nucleus is stable if there is the same number of protons as
electrons.
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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.

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced. be sure your answer has the correct number of significant digits.