Which one of the following describe chemical properties? check all that apply. -water freezes at 0 degrees c. -sugar burns in air to form water and carbon dioxide. -mercury is a liquid at room temperature . -helium is the lightest monatomic element

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes or no?