Which of the following is true? A) Number of moles in input and output is always equal in reacting systems. Yield is always equal to conversion c) Extent of the reaction is always the same as the...

Extracted text: Which of the following is true? A) Number of moles in input and output is always equal in reacting systems. Yield is always equal to conversion c) Extent of the reaction is always the same as the reacted moles of limiting reactant. D) Total mass of input is always equal to total mass of output, even in reacting systems.