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ENERGY OF CHEMICAL REACTIONS
Chemical reactions always involve a change in energy. ... Energy is absorbed or released in chemical reactions. ... There is a simple equation to follow to find the heat of the solution;
DHsoln (heat of solution)=heat absorbed to break bonds – heat released when bonds are made
Endothermic
Chemical reactions in which energy is absorbed are endothermic. ...
How To Create an Endothermic Chemical Reaction
Most endothermic reactions contain toxic chemicals, but this reaction is safe and easy. ...
Exothermic
Chemical reactions in which energy is released are exothermic. The energy that is released was originally stored in the chemical bonds of the reactants. ... Any reaction that involves combustion (burning) is an exothermic chemical reaction. ...
How To Create an Exothermic Chemical Reaction
Exothermic chemical reactions produce heat. ... The thermal energy given off during this chemical reaction causes the mercury in the thermometer to expand and rise up the column of the thermometer tube.
Approximate Word count = 733
Approximate Pages = 2.9
(250 words per page double spaced)
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