Metals Reacting With Water/Steam Flashcards
1
Q
Potassium
A
Reacts EXPLOSIVELY with water. Catches fire and melts, darting across the water surface. Causes hydrogen to burn with a lilac flame.
2
Q
Sodium
A
Reacts VIOLENTLY with water. Catches fire and melts, darting across water surface. Hydrogen may burn with a yellow flame.
3
Q
Calcium
A
Reacts VIGOROUSLY with water. Lots of bubble of hydrogen.
4
Q
Magnesium
A
Reacts VERY SLOWLY with cold water. Few bubbles of hydrogen gas produced.
Hot magnesium reacts VIOLENTLY with steam to form white powder (MgO) and hydrogen.
5
Q
Zinc
A
No reaction with water.
Hot zinc BURNS in steam.
Zinc oxide: Yellow when hot, white when cool
6
Q
Iron
A
No reaction with water.
Red hot iron reacts SLOWLY with steam.
3Fe(s) + 4H2O(g) -> Fe3O4(s) + 4H2(g)
7
Q
Lead, Copper & Silver
A
No reaction with water or steam.
