Chemistry Chapter - 7 Chemical Energetics
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5 Terms
Physical Change
A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another
Chemical Change
A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.
Exothermic Reaction
An exothermic reaction is a reaction in which energy is released in the form of light or heat.
Endothermic Reaction
Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products
reaction pathway diagram
Reaction pathway diagrams display information about the energy changes during chemical reactions