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How much heat is required to raise the temperature of 71.0 g of water from its melting point to its boiling point? H2O, Î”Hvap=40.7 kJ/mol.? Has it ever been proven that molecules exist? People talk about Darwin s theory as "just a theory"... but are molecules a theory too? What is half of 5 1/4 inches? Find the P-value obtained when testing the claim that p = 0.75 when given sample data resulting in a test statistic of z = 1.20.? If Jimmy had to choose at random a letter from the alphabet, what is the probability of him choosing a letter from his name?

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