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Is the making of ice cubes an exothermic reaction?
exothermic. the energy flows out. exothermic. the energy flows out.
A change of state where energy is given off?
This process is called exothermic reaction, where energy is released in the form of heat. It typically involves a change from a higher energy state to a lower energy state, resulting in the release of energy to the surroundings. An example would be the solidification of molten lava into solid rock, releasing heat energy in the process.
What is true of the enthalpy reaction?
The enthalpy of a reaction is a measure of the heat energy exchanged with the surroundings at constant pressure. A negative enthalpy change indicates an exothermic reaction, where heat is released. A positive enthalpy change indicates an endothermic reaction, where heat is absorbed.
A car's engine converts gasoline into energy in an exothermic reaction?
Yes.
What is true about most combustion reactions?
They release energy (they are exothermic).
True or false an exothermic reaction often produces energy in the form of heat light and electricity?
True. An exothermic reaction releases energy in the form of heat, light, and sometimes electricity. This energy is typically given off to the surroundings, resulting in a rise in temperature.
What must be true about the bond energies the reactants and the products?
In a chemical reaction, the total bond energy of the products must be lower than the total bond energy of the reactants for the reaction to be exothermic (energy released) and vice versa for an endothermic reaction (energy absorbed). This is based on the principle of conservation of energy.
When light is absorbed is light energy transformed into stored energy?
true
Is light energy transformed into stored energy when light is absorbed?
true
Do exothermic reactions require any activation energy?
No activation energy can also be needed by endothermic reactions.
When light is absorbed light energy is transformed into stored energy true or false?
True. When light is absorbed by a substance, the light energy is converted into stored energy within the molecules of the substance. This stored energy can then be used for various processes such as chemical reactions or heat production.
What statements are true about chemical bonding?
Energy is absorbed to break bonds. When bonds are formed, energy is released
