Balance the reaction, do not leave any fractions, don't leave anything blank,  then answer the questions about the reaction _________ Ba(CN)2  +  _________ Na3PO4 →  ________  NaCN  +  _________ Ba3(PO4)2(s)   This is an ________ reaction.  Is this a redox reaction?  (yes/no) __________ , because neither Ba+2, CN-1, Na+1, nor PO4-3 change oxidation state.

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A: Answer of the question is given below, 

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".