(a) When the metallic element sodium combines with thenonmetallic element bromine, Br2(l), what is the chemicalformula of the product? (b) Is the product a solid, liquid, orgas at room temperature? (c) In the balanced chemical equationfor this reaction, what is the coefficient in front of theproduct if the coefficient in front of Br2(l) is 1?
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.
(a) When the metallic element sodium combines with the
nonmetallic element bromine, Br2(l), what is the chemical
formula of the product? (b) Is the product a solid, liquid, or
gas at room temperature? (c) In the balanced chemical equation
for this reaction, what is the coefficient in front of the
product if the coefficient in front of Br2(l) is 1?
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