Extracting metals and equilibria Flashcards
What is the reactivity series of metals?
a chart showing the order of decreasing reactivity
What happens when a metal reacts with water?
a metal hydroxide and hydrogen is formed
What is the formula of metal reacting with water?
Metal + Water -> metal hydroxide + hydrogen
What happens when sodium reacts with cold water?
It reacts fast, melting into a ball and fizzing above the water
What can a metal do if it reacts slow with cold water?
it reacts quickly with steam.
What does a metal and steam form?
Metal oxide and hydrogen
What happens when a metal reacts with a dilute acid?
a salt and hydrogen are formed
What happens if a metal below hydrogen in the reactivity series is with dilute acids?
does not react with dilute acids
What happens when a metal reacts with steam, water or dilute acid?
Hydrogen is always formed
What happens in the reactions if metals with Water, Steam and Acids?
metals lose electrons and form cations.
How do metals in solutions displace each other?
When a more reactive metal can displace a less reactive metal from its compound
What is a displacement reaction?
when a more reactive element replaces a less reactive element in a compound
How can reactivity series be predicted?
By dipping a piece of metal in a salt solution.
Where are unreactive metals found?
The Earths crust
How can you extract a low reactive metal?
by heating with carbon
