Jack tries to place magnets on the door of his refrigerator. he observes that the magnets don't stick. he guesses that the door of the refrigerator id made of non magnetic substance. what stage of scientific investigation does his guess represent?

Name the intersection of plane bpq and plane cpq.

Tell me the iupac names of the following alcohols:

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