b) Using the balanced equation from the previous question, what mass of oxygen is needed to completely burn 150 g of C5H12?          (3 marks)  

A reaction which releases energy is called _______ .

Rusting iron is an example of an _______ .

Identify the particle that must receive 2 electrons to acquire a charge of +1.

Propane, C3H8, reacts with oxygen.  Write the balanced chemical equation.   (4 marks)

A gas initially occupies 14 L at 20oC. What will the new volume of gas be at 70oC if the pressure is kept constant? (4 marks)

The pressure exerted by a gas in a closed container is measured with a(n) _______ .

The difference in electronegativity from calcium to iodine is 3.66  

There is a maximum of 4 electrons which can occupy an atom’s first energy level.

The atomic number of an element is 31 and the mass number of one of its atoms is 65.  This atom contains: