chapter 2 Flashcards
chemical reaction
the process by which one or more substances change to produce one or mre different substance
precipte
s solid that is produced as a rsult of a chemical recation in a solution
chemical for mula
a combination of chemicl symbols and numbers to represent a substance
chemical eqautin
a representation of a chemical recation that uses symbols to sh9ow the relationsphip between the reasctants and the priducts
reactant
a substance or mole cule tht participates in a chemical raction
product
the substace that forms in a chemical rection
law of conservation of mass
the law that states that mass cannot be created or destroyed in ordinaru chemical nd physical changes
synthesis reaction
a reactin in whch two or more substances combineto form a new compound
decomposition reaction
a reaction in which a single compound breaks down to form two or more simpler substances
single displacement reaction
a reaction in which one elemeny or radical takes the place of another element or radical in a compound
double displacement reaction
a reaction in which a gas a solid precipate or a molecular compound forms from the excahnge of ions between two compounds
exothermic reaction
a chemical reaction in which heat is release3d to the surrondings
endothermic reaction
a chemical reaction that reuires heat
law of conservation of energy
the law that states that energy cannot be crearted or destroyed but can be chnaged from one form to another
activation energy
the minimum amount of energy required to start a chemical reaction
