Consider each chemical equation and select all that represent a chemical reaction. 2NaI(aq) + Pb(NO3)2(aq) → 2NaNO3(aq) + PbI2(s) 2KBr(aq) + MgCl2(aq) → 2KCl(aq) + MgBr2(aq) HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)

We have to tell which chemical equations that represent a chemical reaction. 2NaI(aq) +…

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Consider each chemical equation and select all that represent a chemical reaction. 2NaI(aq)

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter3: Chemical Reactions

Section3.5: Precipitation Reactions

Problem 1RC

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Concept explainers

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".

Question

Consider each chemical equation and select all that represent a chemical reaction.

		2NaI(aq) + Pb(NO₃)₂(aq) → 2NaNO₃(aq) + PbI₂(s)
		2KBr(aq) + MgCl₂(aq) → 2KCl(aq) + MgBr₂(aq)
		HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O(l)

Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.

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