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Hogar Banco de preguntas Química Archive 2025 January 22

Chemistry Questions from Jan 22,2025

Browse the Chemistry Q&A Archive for Jan 22,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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Vhich phrase describes the initial input of energy that is needed to break bonds in a hemical reaction? (1 point) potential energy bond energy kinetic energy activation energy The dissolution of calcium chloride in water is given by the following equation: heat. How would an energy graph of this reaction appear? (1 point) The reactants would appear at a higher energy state than the products. The reactants would appear at a lower energy state than the products. The reactants and products would appear at a low energy state. The reactants and products would appear at a high energy state. Which part of an energy graph is represented by the highest point? the activated state the products of the reaction the amount of energy absorbed the amount of energy released Which type of chemical reaction occurs when natural.gas is burned? (1 point) replacement exothermic endothermic decomposition Which type of chemical reaction results in the absorption of energy? (1 point) endothermic combustion replacement exothermic Into which type of reaction would a scientist have to infuse a lot of energy in order to cause the reaction to occur? (1 point) slightly exothermic slightly endothermic highly endothermic highly exothermic Into which type of reaction would a scientist have to infuse a lot of energy in order to cause the reaction to occur? (1 point) slightly exothermic slightly endothermic highly endothermic highly exothermic Which phrase describes chemical potential energy? (1 point) the amount of energy needed to break-a bond the amount of energy stored in bonds the amount of energy absorbed by reactants the amount of energy absorbed by products Which tool would a scientist use to measure reaction energy? (1 point) bond energy meter calorimeter reaction vessel vacuum flask In a certain reaction, molecules are moving faster and colliding more often as reactants turn into products. Which action is happening? (1 point) Heat is being absorbed; the reaction is exothermic. Heat is being passed; the reaction is exothermic. Heat is being absorbed; the reaction is endothermic. Heat is being passed; the reaction is endothermic.
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