4P+50₂2P₂O5 HCI + KOH KCl + H₂O 2KCI+ Pb(NO3)2 PbCl₂ + 2KNO3 Precipitation reactions Ba(NO3)2 + MgSO4 → BaSO4 + Mg(NO3)2 H₂O₂ + NaBrO- NaBr + H₂O +0₂ HBr + KOH KBr + H₂O Hg₂(C₂H₂O₂)2 + 2Nal Hg₂l₂ + 2NaC₂H₂O₂ Non-precipitation reactions Show Transcribed Text Reset Help understanding if these equations are precipitation reactions or non precipitation reactions and how do we know
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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