What is the mass of 0.513 mol Al2O3? Give your

answer to the correct number of significant

figures. (Molar mass of Al2O3 = 102.0 g/mol)

0.513 mol Al2O3 = |

g Al2O3

Which of the following groups of elements are most likely not to show similar properties? carbon, silicon, and tin helium, neon, and argon francium, radium and hassium manganese, rhenium, and technetium

Which of the following liquids has the highest surface tension? water oil bromine mercury

Which statement describes how chemical formula such as H20 represent compounds check all that apply They show the types of molecules that make up an atom They show the elements of make up a compound They show the 3 dimensional shape of a molecule

What are the types of radioactive rays that can be produced during a radioactive decay?

The human body needs at least 1.03 x 10-^2 mol O2 every minute. If all of this oxygen is used for the cellular respiration reaction that breaks down glucose, how many grams of glucose does the human body consume each minute?

Which of the following elements is released into the atmosphere by all of these processes: volcanic outgassing, animal respiration and flatulence, burning of fossil fuels, and metamorphism of limestone? a. Carbon. b. Nitrogen. c. Oxygen. d. Sulfur

A phase change from a solid to a gas is called what

What is the meaning of semipermeability?

What type of reaction does Fe+Ag2SO4-FeSO4+Ag

In which one of the following solutions is silver chloride themost soluble? A. 0.744 M LiNO3 B. 0.0176 M NH3 C. 0.181 M HCl D. 0.181 M NaCl E. pure water