A substance formed of two or more elements bonded chemically is a:
Alkali metals all have _______ valence electron(s).
Alkali metals all have _______ valence electron(s).
b) Using the balanced equation from the previous question, w…
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 _______ .
A reaction which releases energy is called _______ .
Rusting iron is an example of an _______ .
Rusting iron is an example of an _______ .
Identify the particle that must receive 2 electrons to acqui…
Identify the particle that must receive 2 electrons to acquire a charge of +1.
Propane, C3H8, reacts with oxygen. Write the balanced chemi…
Propane, C3H8, reacts with oxygen. Write the balanced chemical equation. (4 marks)
A gas initially occupies 14 L at 20oC. What will the new vol…
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 measu…
The pressure exerted by a gas in a closed container is measured with a(n) _______ .
The difference in electronegativity from calcium to iodine i…
The difference in electronegativity from calcium to iodine is 3.66