Acertain liquid sample has a volume of 14.7 ml and a mass of 22.8 grams. calculate the density. 3.45 g/ml 2.25 g/ml 1.55 g/ml 4.15 g/ml

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

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these

Why is the bottom layer of a trophic pyrimid the