Rates of Reactions

The speed at which reactants are converted into products in a chemical reaction.

A reaction that releases energy, usually in the form of heat, to the surroundings.

A reaction that absorbs energy from the surroundings.

The minimum energy required for a chemical reaction to occur.

They increase the rate of a reaction by lowering the activation energy without being consumed.

A theory that states that for a reaction to occur, reactant particles must collide with sufficient energy and proper orientation.

Concentration of reactants, temperature, surface area, and presence of catalysts.

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Change in color, formation of a precipitate, evolution of gas, and change in temperature.

A symbolic representation of a chemical reaction showing the reactants and products.