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The melting of ice cubes is an exothermic reaction?

Melting of ice cubes is actually an endothermic process because energy is required to break the bonds between water molecules in the solid state and convert them into liquid water. Heat is absorbed from the surroundings during this phase change, causing the temperature of the ice to increase until it fully melts.


A change in matter in which energy is taken in is an endothermic change?

Endothermic changes are processes where energy is absorbed by the system from its surroundings. This results in a decrease in temperature in the surroundings during the process. Examples include melting ice and evaporating water.


Can an enzyme make an endothermic reaction exothermic?

False. Not necessarily. Do not confuse kinetics with thermodynamics. Although an enzyme as a catalyst decreases the activation energy of the reaction, this says nothing about whether the reaction is ultimately endothermic or exothermic.


Is the making of ice cubes an exothermic reaction?

exothermic. the energy flows out. exothermic. the energy flows out.


Sublimation includes melting True or false?

false


Are false killer whales endothermic?

Yes. This is also known warm blooded. All mammals and birds are endothermic. Whales are mammals.


Do All minerals have the same melting point True of False?

False, all minerals DO NOT have the same melting point


True or false an impurity raises the melting point of an organic compound?

False. In general, impurities lower the melting point of an organic compound by disrupting the crystal lattice structure.


All reactions involving a change in temperature are exothermic?

This statement is incorrect. Reactions can be exothermic (release heat) or endothermic (absorb heat). The change in temperature depends on whether the heat is being released or absorbed during the reaction.


Is fusion a type of chemical reaction?

False


Does the center of the reaction in the dark reaction split the water?

False


When a reaction is at equilibrium increasing the temperature favors the reaction that releases energy as heat.?

This is False!!! According to LeChatlier's Principle, increasing the temperature is a strees on the equilibrium. To relieve that stress the reaction will shift producing more of the substances on the side of the reaction that absorbs heat energy.