Which substances dissolves in pure water and produces a solution that is a good conductor of electricity?
1) cacl2
2) c6h12o6
3) n2
4) o2

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.