A catalyst provides_____of a reaction of lower ______.

Ammonia gas is produced by the reaction between nitrogen gas and hydrogen gas at a temperature of 550°C and at 200 atmosphoric pressure in the presence of iron as a catalyst. Represent this reaction by a balanced chemical equation.

Write the name of the catalyst used in- Hydrogenation of vegetable oil.

The activation energy of a reaction is 75.2 KJ mol^-1 in the absence of a catalyst and 50.14 Kjmol^-1 with a catalyst. How many times will the rate of reaction grow in the presence of the catalyst if the reaction proceeds at 25^@C ? (R = 8.314 JK^-1mol^-1)

The value of rate constant is 1x10^-2 mol^-1 LS^-1. What is the order of the reaction? How will the catalyst effect the value of K?

One of the catalysts used in the production of NH_3 is

Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.