Metals Flashcards
Malleable
Means metals can be beaten into different shapes
Ductile
Means metals can be drawn/stretched into a wire
Metal + water - >
Metal hydroxide (alkali) + gas
Metal + acid - >
Salt + gas
Metal + oxygen - >
Metal oxide
What is the order of the first four metals in the reactivity series?
Potassium, sodium, lithium, calcium
Peigi swims like camels
What does OILRIG stand for?
O - oxidation I - is L - loss of electrons R - reduction I - is G - gain of electrons
Describe what a displacement reaction is
A displacement reaction is when a metal pushes another metal out of a solution and takes its place in the solution if it’s higher up in the activity series than the original metal
What happens to the electrons in an electrochemical cell?
The electrons will flow from the metal higher in the electrochemical series to the one that is lower in the series
What is an ion bridge needed for?
An ion bridge is needed to complete a circuit because they allow ions to flow between two solutions
What do ion bridges ensure?
Ion bridges ensure that solutions are always electrically neutral
What happens to each electrode in a battery?
The oxidation reaction occurs at the negative electrode producing electrons
The reduction reaction occurs at the positive electrode taking in electrons
What is required for rusting to take place?
Oxygen and water
What type of metals corrode slowly and what type corrode quickly?
Unreactive metals corrode slowly
Reactive metals corrode quickly
What speeds up rusting and how?
Electrolytes because they help with the transfer of electrons from the metal
