4. Write the following balanced equations. • Solid iron(III) sulfide reacts with gaseous hydrogen chloride. • Magnesium combines with nitrogen. • Zinc reacts with silver chloride. 58 words Text Predictions: On 53 K Focus

4. Write the following balanced equations. • Solid iron(III) sulfide reacts with gaseous hydrogen chloride. • Magnesium combines with nitrogen. • Zinc reacts with silver chloride. 58 words Text Predictions: On 53 K Focus

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter9: Chemical Quantities

Section: Chapter Questions

Problem 1QAP: hat do the coefficients of a balanced chemical equation tell us about the proportions in which atoms...

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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.

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4. Write the following balanced equations.
• Solid iron(III) sulfide reacts with gaseous hydrogen chloride.
• Magnesium combines with nitrogen.
Zinc reacts with silver chloride.
C Text Predictions: On
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