The temperature at which the substance is melting is ___ the temperature at which the substance is freezing

What is impossible to do with a hypothesis

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand