Easy Way In Remembering The Reactivity Series

Please - potassium
Stop - sodium
Calling - calcium
Me - magnesium
A - aluminum
Zebra - zinc
I - iron
Love - lead
Hot - hydrogen
Coffee - copper
Served - silver
Graciously - gold

Anyone wants to fill it in ?

How To Rememer Soluble & Insoluble Salts

Some Salts Are Soluble While Others Are Not

What Are They ?

All Sulphates are soluble except Lead, silver and barium (S: LAB)
All Chlorides are soluble except Lead and silver ( C: LA)
All Carbonates are insoluble except (SPCA) sodium potassium calcium and ammonium
All Oxides are insoluble except (SPC) sodium potassium calcium
All Hydroxides are insoluble except (SPCA) sodium potassium calcium and ammonium

Anions

Test for CO3 2- add acid . Carbon dioxide efferevensence is produced

Sulphate ions
Add nitric acid and barium nitrate
Barium sulphate produced white ppt
(bullshit) B.S

Chloride ions (A.C)

Nitrate ions
Acid and sodium hydroxide and warm with aluminum . Ammonia gas produced . Pungent and turns moist red Litmus paper blue

Iodide ions
Add lead nitrate
Forms lead iodide (yellow ppt)

Cations ( Memorising using the All Win Way)

Defination

Cations are metal ions

They can be identified by adding
2 reagents
Calcium Hydroxide, Ca(OH)2
Aqueous Ammonia. , NH3

O level syllubus

when ions react with sodium hydroxide/aqueous ammonia
coloured compounds or white compounds are formed

Coloured coumpounds :
Copper (2) ions
Iron (2) ions
Iron (3) ions

white ppt compounds
calcium ions
lead ions
aluminium ions
zinc ions

Colourless coumpounds
ammonium ions



All win method !!!!!

Ions. Add Sodium hyroxide/Aqueous Ammonia
Copper. Blue ppt(copper hydroxide is formed)why blue ?Cu(u is part of blue)
Iron(2). Green ppt (iron hydroxide is formed)why green ? Green (ee) is charge 2
iron(3). Red ppt (iron hydroxide is formed) why red ? ( red is 3 letters charge 3 )

white is a human nature = LAZy Cow

L= lead
A= aluminium
Z= zinc

C= calicum




how do u all win ?