Question

1. drag and drop the terms with the statements. this decreases the need for energy in a reaction and increases the reaction rate if the amount of reactant is increased, then the reaction rate will be faster. this applies to exposing more matter in a solid so that a reaction goes faster. this applies to increasing contact in a liquid so that a reaction goes faster.

Explanation:

1. Catalysts lower the activation energy (energy needed for a reaction) and speed up reaction rates.
2. Increasing the amount of reactant raises its concentration, which increases reaction rate.
3. Exposing more of a solid's matter increases its surface area, speeding up reactions.
4. Stirring a liquid increases contact between reactants, accelerating the reaction.

Answer:

• This decreases the need for energy in a reaction and increases the reaction rate. → catalyst
• If the amount of reactant is increased, then the reaction rate will be faster. → concentration
• This applies to exposing more matter in a solid so that a reaction goes faster. → surface area
• This applies to increasing contact in a liquid so that a reaction goes faster. → stir