A substance or molecule that participates in a reaction.
What is a reactant?
A substance that forms in a chemical reaction.
What is a product?
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.
What is a chemical equation?
A chemical reaction in which heat is released to the surroundings.
What is an exothermic reaction?
A reaction that requires heat.
What is an endothermic reaction?
A reaction in which two or more substances combine to form a new compound.
What is a synthesis reaction?
A reaction in which a single compound breaks down to form two or more simpler substances.
What is a decomposition reaction?
A reaction in which one element or radical takes the place of another element or radical in a compound.
What is a single-displacement reaction?
A reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds.
What is a double-displacement reaction?
A substance that changes the rate of a chemical reaction without being consumed or changed significantly.
What is a catalyst?