4. What is the percentage of nitrogen, by mass, in calcium nitrate? (a) 8.54%, (b) 17.1%, (c) 13.7%, (d) 24.4%, (e) 82.9%.

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Find the mass, in grams, of 5.00*10^23 molecules of f2