Answered: 1. A chemical equation is consists of…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter6: Chemical Reactions: An Introduction

Section: Chapter Questions

Problem 68AP

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1. A chemical equation is consists of the chemical formulas of the reactants and products. How is a chemical equation balanced? A. changing subscripts B. erasing elements as necessary C. adding coefficients D. adding elements as necessary 2. In the chemical equation H2O2 — H2O + O2, the H2O2 is. a. product b. reactant c. catalyst d. gas 3. Fresh fish and meat that are not stored in a refrigerator shows signs of spoilage in less than a day. What has caused this spoilage? a. presence pf microorganisms b. oxygen in air c. temperature changes d. all of the above 4. The rate of reaction increases as the temperature increases. Which of the following statements provides the best explanation for this? a. at lower temperature the particles do not collide with each other. b. at higher temperature the particles have more energy, move faster, and collide more than often. c. higher temperature has higher activation energy. d. increasing the temperature increases the number of particles, so they collide more often. 5. Chemical reaction is a process in which one or more substances (reactants) are converted to one or more substance (products). The process on how to quick or slow reactants turn into products is called. a. catalyst b. reaction rate c. concentration d. temperature

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