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formation of a solid and release of heat. apex
The release of Energy
Burning of coal is an exothermic chemical reaction (with release of heat).
Gasoline is a combination of several hydrocarbons which when oxidized (chemical reaction) release heat energy.
Exothermic reactions
A chemical reaction
An exothermic reaction.
Heat
formation of a solid and release of heat. apex
the release of gas is a sign of Chemical reaction.
Exothermic chemical reactions release heat.
The release of Energy
Exothermic reaction is just one of the two possible chemical reactions: either exothermic or endothermic. (No difference but heat release)
The release of a gas can be a sign for a chemical reaction.
The general term for a chemical reaction that releases heat is an exothermic reaction. The energy released is called enthalpy.A reaction that releases energy is called an exothermic reaction.
Heat energy is necessary for some chemical reactions to occur. Some chemical reactions are endothermic meaning they require or absorb energy for a chemical reaction to occur. Other chemical reaction are exothermic meaning they release energy when the chemical reaction takes place..
Some chemical reactions are exothermic, some are endothermic.