sodium sulfide and cadmium nitrate undergo a double displacement reactions as shown by the following equation Na2S cd(NO3)2 -> 2NaNO3 CdS What is the mass, in milligrams,of cadmium sulfide that can be made from 5.00mg of sodium sulfide?

Answer 1

Here is an example. Just follow the steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html

Answer 2

32

Answer 3

9.26