16. Use the following decomposition reaction to answer the following questions:2H,0(g) + heat→ 2H;(g) + O,(g)a. Is this reaction Endothermic or Exothermic and how do you know?b. When I decomposed water the temperature rose from 19°C to 26°C. Is this is anendothermic reaction? Explain. 17. During chemical reactions the bonds between atoms break and new bonds form.Energy must be absorbed to break a bond, so breaking bonds is endothermic.Making new bonds is exothermic because energy is released.a) When green copper carbonate decomposes, the equation is:+CuCO,CuoCO2copper carbonatecopper oxidecarbon dioxideIs the reaction exothermic or endothermic? Use ideas about bonds to explain why.

Endothermic reaction is in which energy is given to the reactants. Exothermic reaction in which…

16. Use the following decomposition reaction to answer the following questions: 2H,0(g) + heat → 2H;(g) + O2(g) a. Is this reaction Endothermic or Exothermic and how do you know? b. When I decomposed water the temperature rose from 19°C to 26°C. Is this is an endothermic reaction? Explain.

16. Use the following decomposition reaction to answer the following questions: 2H,0(g) + heat → 2H;(g) + O2(g) a. Is this reaction Endothermic or Exothermic and how do you know? b. When I decomposed water the temperature rose from 19°C to 26°C. Is this is an endothermic reaction? Explain.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

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.

Question

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17. During chemical reactions the bonds between atoms break and new bonds form.
Energy must be absorbed to break a bond, so breaking bonds is endothermic.
Making new bonds is exothermic because energy is released.
a) When green copper carbonate decomposes, the equation is:
+
CuCO,
Cuo
CO2
copper carbonate
copper oxide
carbon dioxide
Is the reaction exothermic or endothermic? Use ideas about bonds to explain why.

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