If you start with 4.0 grams of sodium flouride (naf), how many grams of magnesium flouride (mgf2) will be produced? the molar mass of naf is 42g/mole and the molar mass of mgf2 is 62g/mole.

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

The pressure in a fluid is affected by which characteristics of that fluid

What is the mass of 8 moles of sodium atoms