Chapter 2 section 1-4 Flashcards
process by which one or more substances change to produce one or more different substances
Chemical reaction
solid that is produced as a result of a chemical reaction in solution
precipitate
Combination of chemical symbols and numbers to represent a substance
Chemical formula
representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
Chemical equation
substance or molecule that participates in a chemical reaction
reactant
substance that forms in a chemical reaction
product
law that states that mass cannot be created or destroyed in ordinary chemical and physical changes.
law of conservation of mass
reaction in which two or more substances combine to form a new substance
Synthesis reaction
reaction in which a single compound breaks down to form two or more substances
decomposition reaction
reaction in which one element or radical takes place of another element or radical in a compound
Single-displacement reaction
reaction in which a gas, a solid, precipitate, or a molecular compound forms from the exchange of ions between two compounds
double-displacement reaction
chemical reaction in which heat is released to the surroundings
exothermic reaction
chemical reaction that requires heat
endothermic reaction
law that states that energy cannot be created or destroyed but can be changed from one form to another
law or conservation of energy
minimum amount of energy required to start a chemical reaction
activation energy
