Stupid Chem Shit

Reactivity series

Please- Potassium

Stop- Sodium

Calling- Calcium

My - Magnesium

Aunt- Aluminium

Crazy- Carbon

Zoey- Zinc

Is- Iron

Truly- TIn

Lovely- Lead

Happy- Hydrogen

Chemistry- Copper

Students- Silver

Gold

Steps for water treatment

1. sedimentation and filtration to remove solids

   • Water is pumped into sedimentation tanks and allowed to stand for a few hours

   • Mud, sand and other particles will fall to the bottom of the tank due to gravity and form a layer of sediment 

   • The water is then filtered through sand and gravel to remove smaller particles 

2. filtration through carbon (charcoal)

   • This removes unpleasant tastes and odours

3. chlorination

   • Bacteria are too small to be trapped by the filters 

   • So, chlorine is carefully added to the water supply to kill microbes

Cobalt (II) chloride

Anhydrous- blue

Hydrated- Pink ( CoCl₂•6H₂O )

Copper(II) sulfate

Anhydrous - white

Hydrated- blue CuSO₄•5H₂O

Catalytic converter reaction

2NO + 2CO → N₂ + 2CO₂