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Chemical Reactions

Science

Chemical Reactions Chapter Video

Chemical Reactions Chapter Video

activation energy

the minimum energy needed to start a chemical reaction
activation energy Simple Definition

catalyst

a substance that speeds up a chemical reaction by reducing the activation energy
catalyst Simple Definition

chemical equation

a chemical reaction written using element symbols and chemical formulas
chemical equation Simple Definition

chemical property

a property that is not visible until a substance undergoes a chemical reaction, like solubility
chemical property Simple Definition

coefficient

a number placed in front of a symbol or formula in a chemical equation
coefficient Simple Definition

combustion

the burning of a fuel, where it reacts with oxygen to create heat and light
combustion Simple Definition

decomposition

the chemical breakdown of a substance into simpler substances
decomposition Simple Definition

endothermic reaction

a heat-absorbing chemical reaction, like ice melting
endothermic reaction Simple Definition

enzyme

a protein that speeds up a chemical reaction but remains unchanged itself
enzyme Simple Definition

exothermic reaction

a heat-releasing chemical reaction, like burning or combustion
exothermic reaction Simple Definition

inhibitor

a substance that slows down a chemical reaction
inhibitor Simple Definition

law of conservation of mass

states that mass cannot be created or destroyed in a chemical reaction
law of conservation of mass Simple Definition

precipitate

a solid formed when two solutions react
precipitate Simple Definition

product

a new substance formed by a chemical reaction
product Simple Definition

reactant

a substance that is changed in a chemical reaction
reactant Simple Definition

synthesis

a reaction that forms a new compound
synthesis Simple Definition

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