metals Flashcards
1
Q
reactivity series (please stop…)
A
potassium
sodium
calcium
magnesium
aluminium
carbon
zinc
iron
lead
hydrogen
copper
silver
gold
2
Q
which metal oxides are stable to heat
A
potassium- copper oxide
3
Q
which metal oxides decomposes upon heating to form metal
A
silver, gold oxide
4
Q
which metal hydroxides are stable to heating
A
potassium and sodium hydroxide
5
Q
which metal hydroxides decompose upon heating to form metal oxide and water
A
calcium-gold hydroxide
6
Q
which metal carbonates are stable to heat
A
potassium, sodium carbonate
7
Q
which metal carbonates decompost to metal oxide and carbon dioxide upon heating?
A
calcium- gold carbonate
8
Q
colour of zinc oxide
A
yellow when hot, white when cool
9
Q
colour of copper2 carbonate before heating
A
green
10
Q
colour of lead2 oxide
A
yellow
11
Q
colour of copper 2 oxide
A
black
