Mercury has an atomic number of 80 and a mass number of 200. how many neutrons are in one atom of mercury?

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?