TU au point What is the energy change when the temperature of 13.1 grams of solid nickel is decreased from 39.8 °C to 10.7 °C ? Type your answer... Given the following information, calculate the density in g/mL of an irregular solid. Mass of weighing vessel Mass of solid + weighing vessel Volume of liquid in graduated cylinder Volume of liquid in graduated cylinder + volume of solid Type your answer... Fe: type your answer... Determine the number of each element present in the following compound: Iron (III) Chromate 19.1g Cr type your answer... : Cr: type your answer..... type your answer... 0.332 g 4.002 g 1.83 mL choose your answer..... 7.53 mL Use dimensional analysis to show how to calculate the volume occupied by 19.1 grams of chromium. The density of chromium is 7.25 g/mL. cubic centimeters Cri O: type your answer.... H: type your answer..... Cr)/(type your answer... choose your answer... ✓ Cr)=

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Q: Number 5

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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.