What occurs in a chemical reaction? Products are formed from reactants by the breaking and forming of new bonds.

Reactants are formed from products by the breaking and forming of bonds.

Products are formed without chemical bonds being broken.

Reactants are formed without chemical bonds being broken.

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)