If 22.00 g of CO2 has a volume of 50.00 L and a pressure of 0.8210 atm. What must be the temperature of the gas. Molar mass of CO2 is 44 g/mol

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

In 2002, the rare earth elements mine in mountain pass, california was closed because

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: