Adding an inhibitor to a chemical reaction will have which effect on the reaction?

The inhibitor will increase the rate of the reaction.

The inhibitor will decrease the rate of the reaction.

The inhibitor will initially increase the rate of the reaction and then decrease it.

The inhibitor will have no effect on the rate of the reaction.

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Is 9 correct? and can someone me with 10? it’s due tomorrow, you