For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. reaction 4 KI(aq) +2 CuCl₂(aq) → 2 CuI(s)+I₂(aq) +4 KCl(aq) C(s) + O₂(g) → CO₂(g) NH3(aq)+2O₂(g) → HNO3(aq)+H₂O(1) 2 H₂(g) + O₂(g) → 2 H₂O(g) highlighted atom is being... oxidized reduced neither oxidized nor reduced O O
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.
need some help on this review chemistry
Since,
In redox reaction,
Oxidation and reduction reaction both takes place simultaneously.
In oxidation reaction,
Oxidation number increases or number of oxygen increases or number of hydrogen decreases or loss of electron takes place.
In reduction reaction,
Oxidation number decreases or number of oxygen decreases or number of hydrogen increases or gain of electron takes place.
Thus,
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