Balance the chemical equation _mg (s) +_ HCI (aq)----->_MgCl2 (aq) + _H2 (g) Identify type of reaction   _Fe (s) + _HCI (aq)-------->_FeCl3 (aq)+ _H2 (g)  Identify type of reaction

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A: According to conservation of mass, mass cannot be created or destroyed.

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Q: Consider these reactions, where M represents a generic metal.…

A: Given reactions: 2M(s)+6HCl(aq)→2MCl3(aq)+3H2(g)      ∆H1=-669.0 kJ----eqn(1)HCl(g)→HCl(aq)…

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Q: _CaCl2 (aq) + _Na2CO3 (aq) ------->_CaCO3 (s) + _NaCl (aq)

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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".