Module 3

Question 1

What is periodicty?

Answer 1

• repeating trends of physical or chemical properties

Question 2

What is the first ionisation energy?

Answer 2

• the energy required for the removal of 1 mol of electrons from 1 mol of gaseous atoms

Question 3

What is the activation energy?

Answer 3

• the minimum energy required for the reaction to occur

Question 4

What is a metallic bond?

Answer 4

• a strong electrostatic attraction between the positive ions and delocalised electrons

Question 5

What are heterogeneous catalysts?

Answer 5

• catalysts which are in a different phase to the reactants

Question 6

What are homogeneous catalysts?

Answer 6

• catalysts which are in the same phase as the reactants