Which of the following is always true in combustion reactions? (MARK ALL THAT APPLY) O A hydrocarbon is always a reactant. O More energy is released as a product than is required to start the reaction. OCarbon dioxide is always a product Water is aways a product A More energy is required to start the reaction than is released as a product O Oxygen is always a reactant

Which of the following is always true in combustion reactions? (MARK ALL THAT APPLY) O A hydrocarbon is always a reactant. O More energy is released as a product than is required to start the reaction. OCarbon dioxide is always a product Water is aways a product A More energy is required to start the reaction than is released as a product O Oxygen is always a reactant

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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A chemist measures the energy change AH during the following reaction: Cl₂(g) + H₂(g) → 2 HC1 (g) AH=184. kJ Use the information to answer the following questions. endothermic. This reaction is... 0 exothermic. Suppose 28.0 g of Cl₂ react. Yes, absorbed. Yes, released. Will any heat be released or absorbed? No. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round your answer to 3 significant digits. ☐kJ x10 X ?
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An increase in temperature drives an endothermic reaction toward the reactants. True False
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Which is not a factor of an endothermic reaction? OAHIS negative. O AH is on the reactant (left) side of the reaction. O Heat is absorbed. O AH is positive.
Please answer question 18 part A
A reaction where the products are higher in energy than the reactants is an example of an exothermic process endothermic process exergonic process