The molar masa of A is 60.0 g/mol, and the molar maiss of B is 90.0g/mol. What are the lowest whole-number coeficients of A and B in the balanced chemical oquation? A chemical reaction in which eactants A and B form the producd Cis studied in the laboratory. The hesearcher camies out the reaction with difering relative amounts of reactarts and measures the amount of product produced. Examine the given tabulated data from the experiment and answer the questions Match the numbers in the left column to the appropriate blanks in the sentences on the right. > View Available Hintts) Experiment Mass A Mass B (g) Mass C obtained 1. 3.01 9.05 4.50 The coefticient in the balanced chemical equation for Bis 6.04 9.01 8.91 9.00 9.01 13.34 The coefficient in the balanced chemical equation for A is 4 15.04 8.90 17.79 15 18.05 897 17.91 4. 23.98 0.01 18.19 24.05 11.94 23.15 8. 24.02 15.06 29.60 6.
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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