Question

Carbon monoxide and nitrogen monoxide react to produce carbon dioxide and nitrogen gas. If the system contains platinum, then less energy is required for the reaction to occur. Which term best describes the role of platinum in the system? (1 point)
Responses

catalyst
catalyst

product
product

energy
energy

reactant

Answer 1

The term that best describes the role of platinum in the system is **catalyst**. A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process, thereby lowering the energy required for the reaction to occur.