Experiment # Reactants Before After

#1 Hydrogen Peroxide

Manganese Dioxide Clear substance (liquid)

Charcoal colored black Bubbling substance with cloudy solution and black precipitate

Black precipitate formed at bottom. Glowing splint showed presence of oxygen

#2 Silver Nitrate

Copper Foil Clear liquid

Solid, shiny bronze strip Fuzzy white substance

Formed around copper strip and clear solution. Copper turned black and corroded

#3 Sodium Hydroxide

Phenolphthalein

Sulfuric Acid Clear solution

Clear substance

Clear solution Purple solution

Purple Solution. Changes from acid to base

Changes purple substance to a clear solution

#4 Carbon Dioxide

Magnesium Ribbon

Clear, gaseous

Solid silver strip White and foggy. Put out burning magnesium

Fire- very bright light

CO2 put out fire. Created white strip and powdery ash

#5 Sodium Hydrogen Carbonate

Lime Water CO2

Cobalt Chloride Paper White powder

Clear Aqueous liquid

Blue paper Condensation formed in test tube

Condensation, opaque, cloudy, milky

Positive test for water (reddish purple...