If you are presented with covalent compounds that consist of two or more atoms of the same element bonded together, the name of the molecule is the same as the name of the element. For example, Cl 2 is simply called "chlorine.
Explanation:
a ) 1876.14 grams CaBr2
b ) 19.78 grams N2
sorry..i only have time to do the first two :)
Explanation: