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Question 14 A match does not ignite spontaneously with oxygen in the air because... the reaction is endothermic. the reaction of exothermic. very few molecules have required sufficient activation energy. air is only 20% oxygen.

Question 14 A match does not ignite spontaneously with oxygen in the air because... the reaction is endothermic. the reaction of exothermic. very few molecules have required sufficient activation energy. air is only 20% oxygen.

Chemistry
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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Question 14 A match does not ignite spontaneously with oxygen in the air because... the reaction is endothermic. the reaction of exothermic. very few molecules have required sufficient activation energy. O air is only 20% oxygen. Question 15 Increasing the concentrations of the reactants in a chemical reaction increases the rate of reaction because the: collisions become more effective. frequency of collisions increases. average kinetic energy increases. activation energy decreases. Question 16 Aluminum metal is used on the exterior of buildings and in making screen door, yet a bottle of aluminum powder is labeled "FLAMMABLE!" surface area temperature or mass concentration or pH viscosity or mass O O O O O O O O
Transcribed Image Text:Question 14 A match does not ignite spontaneously with oxygen in the air because... the reaction is endothermic. the reaction of exothermic. very few molecules have required sufficient activation energy. O air is only 20% oxygen. Question 15 Increasing the concentrations of the reactants in a chemical reaction increases the rate of reaction because the: collisions become more effective. frequency of collisions increases. average kinetic energy increases. activation energy decreases. Question 16 Aluminum metal is used on the exterior of buildings and in making screen door, yet a bottle of aluminum powder is labeled "FLAMMABLE!" surface area temperature or mass concentration or pH viscosity or mass O O O O O O O O
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