Question

H2C=CH2(g) + H2(g) C2H6(g) Adding a small amount of platinum powder greatly increases the rate of the reaction above. How might the platinum be affecting the rate of the reaction? (Select all that apply.)

It makes the electron density in a bond lower so that it is easier to break.

It orients the reactants in the proper direction.

It increases the energy of activation for the reaction.

It increases the concentration of the reactants.

It acts as a catalyst in the reaction.

It lowers the energy of activation for the reaction.

It increases the temperature of the reaction.

Answer 1