7. what is a chemical bond? a. the force that holds together the elements in a compound b. a representation of chemical properties c. a substance that's composed of atoms d. the attraction of two atoms that holds the atoms together

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?