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

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point

How many atoms or molecules are there in a mole of a substance?