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If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms