chemistry stations 2012

Chemistry Chemistry StationsStations

Chemical or Physical Change?Chemical or Physical Change?

Magnesium and Magnesium and HeatHeat

Chemical ChangeChemical Change

Mg02Mg + O2 → 2MgO

Magnesium + Oxygen gas → Magnesium oxide

Magnesium and Magnesium and Hydrochloric acidHydrochloric acid

(Mg +HCl)(Mg +HCl)


MgCl2 + H2

Collapsing CanCollapsing Can

Physical ChangePhysical ChangeThe can filled with steam - cooled - steam condensed

Pressure on the outside was greaterthan that on the inside - collapsed

Electricity and Electricity and Hydrochloric AcidHydrochloric Acid

Chemical ChangeChemical ChangeH + Cl

Cobalt Chloride and Cobalt Chloride and Calcium HydroxideCalcium Hydroxide

CoClCoCl22+Ca(OH)+Ca(OH)22

Chemical ChangeChemical ChangeCa(OH)2 + CoCl2 -------> Co(OH)2 + CaCl2 Ca(OH)2 + CoCl2 -------> Co(OH)2 + CaCl2

Potassium Permanganate Potassium Permanganate and Sodium Sulphiteand Sodium Sulphite

(KmnO(KmnO44 + Na2SO + Na2SO3)3)


Milk KaleidoscopeMilk Kaleidoscope

Physical ChangePhysical Change

Breaking the surface tension

Powder and WaterPowder and Water


Dissolved Tea

Vacuum Pump and Vacuum Pump and MarshmallowMarshmallow


Air pressure

Wax and HeatWax and Heat


Solid + Heat = LiquidLiquid – Heat + Solid

Change of State

Ice Cubes and Ice Cubes and HeatHeat


Change of State

Canister ExplosionCanister ExplosionNa HCONa HCO33 + CH + CH33COOHCOOH


Saturated Salt Saturated Salt SolutionSolution

NaCl + HNaCl + H22O + HeatO + Heat


Water evaporated and left the Salt.

Bromothymol Blue Bromothymol Blue and COand CO22


When CO2 mixed with water it became carbonic acid, which changed the color of the ‘indicator’.

You will learn more about that later!

Bonus StationsBonus Stations

Sodium Sodium Polyacrylate and Polyacrylate and

WaterWater

Physical Change!Physical Change!

Goldenrod paper Goldenrod paper and liqudand liqud


chemistry stations 2012

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