Find oxidation numbers for the following:

Cl:

Be:

Al:

Ca:

O:

What volume of 0.305 M AgNO3 is required to react exactly with 155.0 mL of 0.274 M Na2SO4 solution?

Aluminum's enthalpy of vaporization is 284 kj/mol. beryllium's enthalpy of vaporization is 224 kj/mol. in which element is the bonding stronger between atoms?

An atom of aluminum has an atomic number of 13 and a mass number of 27. How many neutrons does it have?

What is one measurement needed to calculate the speed of an object? Direction, mass, Time, or Velocity?

What are the names for the three different states of water

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

A 5.701 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 12.28 grams of CO2 and 5.029 grams of H2O are produced. In a separate experiment, the molar mass is found to be 102.1 g/mol.

One amu is equal to the mass of an electron the mass of one proton or one electron the mass of one neutron or one electron the mass of one neutron or one proton

Given an unknown mixture consisting of two more substances, explain how could you determine whether that mixture is a true solution, a colloid or a suspension

Which isotope of lithium has 3 neutrons?