For each of the following reactions (7-20), identify if the reaction is a single replacement or double replacement reaction. If no reaction occurs, write NO REACTION and explain why it does not occur. If the reaction does occur, explain why it occurs and write the products and then balance the reaction.Then for each reaction that occurs, write the total and net ionic equation. 15. Phosphoric acid and calcium sulfite16. Sodium chloride and potassium nitrate17. Magnesium nitrate and ammonium oxalate18. Barium chloride and sodium sulfate19. Potassium chromate and lead(II) nitrate20. Sodium oxalate and hydrochloric acid

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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".