Chapter 2 Flashcards
The process by which one or more substances change to produce one or more different substances.
Chemical Reaction
A solid that is produced as a result of a chemical reaction in solution.
Precipitate
A combination of chemical symbols and numbers to represent a substance.
Chemical Formula
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
Chemical Equation
A substance or molecule that participates in a chemical reaction.
Reactant
The substance that forms in a chemical reaction.
Product
The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes.
Law of Conversation of Mass
A reaction in which two or more substances combine to form a new compound.
Synthesis Reaction
A reaction in which a single compound breaks down to form two or more simpler substances.
Decomposition Reaction.
A reaction in which one element or radical takes the place of another element or radical in a compound.
Single-Displacement Reaction
A reaction in which a gas, a sold precipitate, or a molecular compound forms from the exchange of ions between two compounds.
Double-Displacement Reaction
A chemical reaction in which heat is released to the surroundings.
Exothermic Reaction
A chemical reaction that requires heat.
Endothermic Reaction
The law that states that energy cannot be created or destroyed but can be changed from one form to another.
Law of Conversation of Energy
The minimum amount of energy required to start a chemical reaction.
Activation Energy
