Indicate how many atoms of each type of element are present on each side (i.e., on the reactant's side only or the product's side only) of the following balanced equation. Mg3(PO4)2(s) + 6 NaCl(aq) Oc. Ni(s) + HCl(aq) → Mg P Od. HNO3(aq) + NaOH(aq) → Na CI 2 Na3PO4(aq) + 3 MgCl2(aq) QUESTION 15 In which of the following does no reaction occur? You may need to refer to an activity series and a solubility table to determine whether or not a reaction occurs. O a. Na₂SO4(aq) + KOH(aq) → O b. K₂CO3(aq) + Ca(NO3)2(aq) → 1

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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".