Reactivity Series
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Why group 1 are the most active metals
As they are more readily to lose electrons than other metals
Why Group 7 contain most active non-metal
As they are more readily to gain electrons than other non metals
Reactivity series of metal____down group
Increase
Reactivity series of non-metals _____down group
Decrease
What are the very active metals with arranging
K,na,ba,ca,mg,al
What are moderately active metal
Zn Fe Sn Pb
What are least active metals
Cu Hg Ag Au Pt
Balanced chemical equation with symbols for reaction of active metal with water(ca,na)
2Na(s)+2H2o(l)=>2NaoH(aq)+H2(g) Ca(s)+2H2o(l)=>Ca(oH)2(aq)+H2(g)
K and Na react____with cold water
Violently
Ca react ____with cold water
Readily
Why calcium react readily with water
To form bubbles of hydrogen and to form calcium hydroxide solution
Mg_____with cold water
Very slow
What will happen when mg heat in steam?
Mg change from shiny grey solid to to white powder of mgo
Write balance equator with symbols when mg heat in steam
Mg(s)+H2o(l) =>Mgo(s)+H2(g)
What happen when Zn and Fe react with steam
Form metal oxide with hydrogen
Write balanced equation with symbols Zinc+hydrochlicacid=>zinc chloride +hydrogen
Zn(s)+2Hcl(aq)=>Zncl2(aq)+H2(g)
Zinc+sulphuric acid=>zincsulphate+hydrogen
Zn(s)+H2So4(aq)=>ZnSo4(aq)+H2(g)
Why active metals like potassium and sodium can’t react with acid
As its too dangerous and cause explosion
Why aluminium seems unreactive metal?
Due to protective layer of oxide Al2O3 which adheres to the metal
Some properties of displacement reaction
Redox Most are exothermic
What will happen when we add copper to zincsulphate
No reaction
What will happen when we add copper to magnesium sulphate
No reaction
What will happen when we add zinc to copper(ll)sulphate
Redish brown dopesit of cu forms Blue colour of solution fades
Balanced equation when zinc added to copper(ll)sulphate solution
Zn(s)+CuSo4(aq)=>Znso4(aq)+Cu(s)