In what way does a catalyst help in chemical reactions?
Options:
- (A) Generating heat
- (B) lowered energy cost
- (C) metabolic reaction
- (D) heating liquids
- (E) by making heat
- (F) adding heat
- (G) increases a body's strength
- (H) preventing heat transfer Let's be accurate as possible.
All chemical reactions require activation energy to get started. Catalysts lower the activation energy. A catalyst can lower the energy cost of a chemical reaction.
The final answer: (B).