A small cup of water is left out on the counter. Three days later, the water is gone. Which phase change describes what has occurred?

Melting

Sublimation

Evaporation

Condensation

Why do fronts tend to create precipitation

Which describes two phases in dynamic equilibrium?

Identify each statement as true or false. Rewrite false statements to make them correct. Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

What diffuses faster: a gas sample into a vacuum container, or a gas sample into an air filled container?

A sample of hydrogen peroxide (H202) has 2.0 grams of hydrogen (H) and 32 grams of oxygen (O). What is the percent composition of hydrogen peroxide

Which type of reaction is described by the following equation? Na2O (s) + 2CO2 (g) + H2O (g) produces 2NaHCO3 (s)

According to Hund's Rule, if you were filling the three orbitals at the 2p energy level, you would first put an electron in the 2px orbital, then in the 2py orbital, and then in the 2pz orbital;

It is snowing where Jenna lives. It's been snowing all day, but now the snow has changed to sleet and then to freezing rain. What is happening to cause these changes?

Liquid sample a has a higher vapor pressure than liquid sample b (both in closed containers). what can be said about sample a compared with sample b?

A neutral atom has high electronegativity. Describe what happens to this atom during ionic bond formation?