Classify each chemical reaction: Reaction 2Crl, (aq) + 3Pb(NO₂)₂ (aq) → 2Cr(NO3)₂ (aq) + 3PbL₂ (s) Fe(s) + CuSO4 (aq) → FeSO4 (aq) + Cu(s) - 16Na (s) + S, (g) BaCO3(s) 1 8 Na₂S (s) BaO(s) + CO,(g) - Type ✓ choose one combination decomposition single displacement metathesis none of the above choose one C M C
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.
Metathesis reaction is also known as double displacement reaction which involves exchange of ions between two reacting chemical species.
Single displacement reaction:
In this reaction one element is replaced by another in compound.
Combination reaction:
In this reaction two or more reacting chemical species forms single product.
Decomposition reaction :
In this reaction one reactant molecules breaks down into two or more products
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