Topic 3 Patters Of Reactivity-######### Flashcards
If a metal reacts with oxygen we get
Metal oxide
Why are lithium ,sodium and potassium stored under oil in jars
They could react to moister in the air.
Alkaline solutions formed as a group of metals reacts is called
Hydroxides
What two things are produced when metals react with water
Metal hydroxide + hydrogen
What is usually produced when a metal reacts with an acid
Hydrogen gas and salt (squeaky pop test)
What metals would you not try putting into acid
Potassium,sodium,lithium - they are 🧨 explosive 🧨!!!!!!!!!
Some metals react slowly with water so instead we can use acid. Metal + acid = M.A.S.H
Metal+ acid -> salt +hydrogen
What is unusual with aluminium?
It is really reactive but extremely slow
What happens to aluminium in acid
In acid nothing happens for at least five mins. Then bubbles of gas appeared and the aluminium tuned dark grey.
Why was your observations with aluminium surprising
Aluminium is high up the reactivity series but it took quite a while for the aluminium to react with the acid
Why does aluminium resist corrosion ?
A proactive layer of aluminium oxide on its surface is placed . Aluminium resists corrosion as it forms a protective oxide layer on its surface and this protects the aluminium.
