It’d just be wrong to not have a couple labs when learning about chemical reactions. This section included two labs.Exothermic and Endothermic Reactions. Students create two chemical reactions; one exothermic (adding yeast to hydrogen peroxide) and one endothermic (dissolving ammonium nitrate into water- it’s not really a chemical reaction but it does get very cold).
Types of Chemical Reactions. Five reactions that demonstrate the five basic types of chemical reactions. Clicking the following links takes to you photos taken of the reactions as students performed them:
Barium chloride + sodium sulfate (double replacement reaction, forms a precipitate)
Burning magnesium (combustion and synthesis reactions, exothermic)
Zinc in acid (single replacement reaction)
includes testing for hydrogen gas with a burning splint (combustion and synthesis reactions)
Decomposition of sodium bicarbonate (a.k.a baking soda)
includes testing for carbon dioxide with a burning splint
Copper (II) chloride + aluminum foil (single replacement reaction, exothermic)
Burning magnesium (combustion and synthesis reactions, exothermic)
Zinc in acid (single replacement reaction)
includes testing for hydrogen gas with a burning splint (combustion and synthesis reactions)
Decomposition of sodium bicarbonate (a.k.a baking soda)
includes testing for carbon dioxide with a burning splint
Copper (II) chloride + aluminum foil (single replacement reaction, exothermic)
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