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In _______ reactions, the products have higher energy than the reactants, and in _________ reactions, the reactants have higher energy than the products. a. exothermic, endothermic c. equilibrium, spontaneous b. endothermic, exothermic d. reversible, irreversible
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Asked 3/8/2015 7:09:29 PM
Updated 3/9/2015 6:33:57 AM
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User: In _______ reactions, the products have higher energy than the reactants, and in _________ reactions, the reactants have higher energy than the products. a. exothermic, endothermic c. equilibrium, spontaneous b. endothermic, exothermic d. reversible, irreversible

Weegy: a.endothermic or d.exothermic it idepends on situationa. if products have more energy in a reaction the reaction is endothermic if reactans have more energy in a reaction the reaction is exothermic it is this way because to determine if a [ reaction is endothermic or exothermic you have to know the H. H is enthalpy change. Enthalpy change is the amount of heat absorbed or lost by a system during a process at constant pressure. in exothermic reactions, heat is evolved, or given off, because the initial heat content of the reactants is greater than the final heat content of the products. exothermic reactions always have a negative enthalpy change in endothermic reactions, heat is absorbed because the initial heat content of the reactants is lower than the final heat content of the products. endothermic reactions always have a positive enthalpy change ]
chantalsantos|Points 532|

User: The rate of a chemical reaction normally ____. a. decreases as temperature increases b. is slowed down by a catalyst c. increases as reactant concentration increases d. decreases as reactant concentration increases

Weegy: C. increases as reactant concentration increases
selymi|Points 18915|

User: Which of the following substances act as catalysts in the body? a. carbohydrates c. lipids b. nucleic acids d. enzymes

User: Another name for the activated complex is ____. a. energy barrier c. rate limiter b. transition state d. collision group

Question
Asked 3/8/2015 7:09:29 PM
Updated 3/9/2015 6:33:57 AM
1 Answer/Comment
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3
Another name for the activated complex is transition state.
Added 3/9/2015 6:33:57 AM
This answer has been confirmed as correct and helpful.
Confirmed by selymi [3/25/2015 1:35:12 AM]
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