Which of the following statements is correct regarding catalysts ( Click on the 4 that apply) (2 points)
Catalysts increase the rate of a reaction
Catalysts decrease the rate of a reaction
Catalysts increase the activation energy needed to start a reaction
Catalysts decrease the activation energy needed to start a reaction
They are used up in the reacton
They are not used up in the reaction
Catalysts are very specific
Catalysts are not very specific
increased rate, lower activation, not used up, and are specific.
So you have any thoughts?Why not google. You should get some ideas there.
@bobpursley thank you so much <3 *chef's kiss*
To determine which of the statements are correct regarding catalysts, we can analyze each statement individually:
1. Catalysts increase the rate of a reaction: This statement is correct. Catalysts work by providing an alternative reaction pathway with lower activation energy, allowing reactions to occur more rapidly.
2. Catalysts decrease the rate of a reaction: This statement is incorrect. Catalysts always increase the rate of a reaction, as mentioned in the previous statement.
3. Catalysts increase the activation energy needed to start a reaction: This statement is incorrect. Catalysts actually decrease the activation energy required for a reaction to start. By providing an alternate pathway with lower activation energy, they make it easier for the reaction to proceed.
4. Catalysts decrease the activation energy needed to start a reaction: This statement is correct. As explained earlier, catalysts lower the activation energy barrier, promoting the reaction to occur more readily.
5. They are used up in the reaction: This statement can be true or false, depending on the specific catalyst and reaction. Some catalysts are not consumed during the reaction and can be reused, while others may undergo chemical changes and be consumed.
6. They are not used up in the reaction: This statement can be true or false, as explained in the previous statement. It depends on the nature of the catalyst and the reaction it is involved in.
7. Catalysts are very specific: This statement is true. Catalysts are highly specific to particular reactions or groups of reactions. They have molecular structures tailored to interact and facilitate certain chemical transformations.
8. Catalysts are not very specific: This statement is incorrect. Catalysts exhibit specificity towards certain reactions, promoting only those reactions for which they are designed.
Based on this analysis, the correct statements regarding catalysts (from the given options) are:
- Catalysts increase the rate of a reaction
- Catalysts decrease the activation energy needed to start a reaction
- They are used up in the reaction (depending on the specific catalyst and reaction)
- Catalysts are very specific