Q: What kind of reaction do you see when the concentration of reactants is higher?


Read this paragraph and choose the correct option from the provided answers:

Concentration is the number of particles of a substance in a given volume. When the concentration of reactants is higher, the reaction rate is faster. At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react. Did you ever see a sign like the one in the Figure below ? You might see it where someone is using a tank of pure oxygen for a breathing problem. Combustion, or burning, is a chemical reaction in which oxygen is a reactant. A greater concentration of oxygen in the air makes combustion more rapid if a fire starts burning.

 Choices:

- regular reaction rate

- slow reaction rate

- constant reaction rate

- faster reaction rate


A:
faster reaction rate