What's the number?
What is the oxidation number of an element?
Zero
What is the colour of oxygen gas?
Colourless
Fe
What is a group of wolves called?
A pack
What is the largest city in the South Island?
Christchurch
What is the oxidation number of hydrogen in a compound?
What is the colour of Mg2+ ions in solution?
Colourless
What is the symbol of a magnesium ion?
Mg2+
Where on the human body would you find the hammer and anvil?
Ear
What is the name of the largest mountain in New Zealand found in the central South Island?
Mt Cook
What is the oxidation number of oxygen in a compound?
-2
What is the colour of Cu2+ ions in solution?
Blue
What is the ionic formulae of a nitrate ion?
NO3-
How many items are in a bakers dozen?
13
True or false: More people live in the South Island than they do in Auckland.
False
What is the oxidation number of chlorine in HCl?
-1
What is the colour of permanganate ions (MnO4-) in solution?
Purple
What is the chemical formulae of hydrogen peroxide?
H2O2
In a south-east Asian country, what was the longest war of the 20th century?
The Vietnam War
What part of the South Island, found in Fiordland, is unofficially known as the "eighth wonder of the world"?
Milford Sound
What is the oxidation number of Cr in Cr2O72-
+6
What is the colour of nitrogen dioxide gas?
Brown
What is the chemical formulae of potassium dichromate?
K2Cr2O7
What is the most eaten meat in the world?
Pork
Lake Tekapo is known for its striking blue-green water. What causes the lake to have this colour?
Water from glaciers.