What coefficients would balance the following equation?
__al + __o2 → __al2o3
a. 2al + 3o2 → 1al2o3
b. 2al + 3o2 → 2al2o3
c. 3al + 3o2 → 2al2o3
d. 4al + 3o2 → 2al2o3

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)

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.