2d - Reactivity Series Flashcards
What is the loss of electrons called?
Oxidation
What is the gain of electrons called?
Reduction
What are the 3 things needed for combustion?
Heat, oxygen + fuel
What are metal oxides?
bases / alkalis
What are non metal oxides
Acids
What does the thermal decomposition of metal carbonates produce?
Co2 + a metal oxide
Acid + metal —> ……..?
Acid + metal —> salt + hydrogen
Metal + water —> ……..?
Metal + water —> metal hydroxide + hydrogen
List the reactivity series from most reactive to least
Potassium sodium lithium calcium, magnesium aluminium zinc iron copper silver gold
Iron + oxygen + water —> ……..?
Iron + oxygen + water —> hydrated iron (III) oxide (rust)
List methods which prevent rusting
- Barrier methods
- sacrificial coating
- galvanising
Describe potassium’s reaction with water
Reacts violently
Describe sodium’s reaction with water
Reacts quickly
Describe calcium’s reaction with water
Reacts less strongly
Describe potassium’s reaction with acid
Reacts violently