The melting point of mercury is -38.8°C.  What is this temperature in Kelvins?

Identify the following elements: The noble gas period 6 Halogen period 2 Alkali metal period 5 The alkali-Earth metal period 4  The transitional metal period 5 Metalloid period 5   

Calculate the average atomic weight of Zn using the following data for the percent natural abundance and mass of each isotope: Zn-64 = 48.89%, 63.929 amuZn-66 =27.81%, 65.926 amuZn-67= 4.11%, 66.927 amuZn-68= 18.57%, 67.925 amuZn-70 =0.62%, 69.925 amu

The density of octane is 0.703 g/mL. What is the density of octane in lbs/Gal?

The mass of 450.5 mg equals

Calculate the molar mass of calcium trichloroacetate, Ca (CCl3CO2)2, in g/mol

Identify the following elements: The noble gas period 5 Halogen period 3 Alkali metal period 2 The alkali-Earth metal period 3  The transitional metal period 6 Metalloid period 7

For the isotope Tin-120 report the following number of protons number of electrons number of neutrons mass number atomic symbol atomic mass

Indicate the sign of the charge (+; 0;  -)  for the following particles  proton neutron cation

The empirical formula for C3H7COOH is: