transition metals Flashcards
1
Q
what are transition metals?
A
- they are very dense, strong and shiny
- less reactive than G1 metals
- have high melting points
- have more than one ion
2
Q
what are fe2+ ions?
A
green compounds
3
Q
what are fe3+ ions?
A
red/brown compounds
4
Q
why are compounds colourful?
A
because transition metal ions contain potassium chromate (yellow), potassium manganate (purple) and copper sulfate (blue)
5
Q
what are the uses of transition elements?
A
colours are used in gemstones, emeralds and pottery glazes
6
Q
what colour is weathered copper?
A
green
7
Q
what catalyst is used in the haber process to produce ammonia?
A
iron
8
Q
what is manganese oxide?
A
the decomposition of hydrogen peroxide
9
Q
what does nickel do?
A
turns oils and fats into margarine
