Come up with a different analogy of elements and compounds ?

According to the tide table below what time of day will the highest tide occur?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88