8. Thermochemistry
Endothermic & Exothermic Reactions
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ANSWERS OPTIONS
A
Reactant
B
Product
Potassium reacts intensely with water, forming potassium hydroxide and highly flammable hydrogen. The reaction can even cause a small explosion due to the heat released igniting the hydrogen. If the reverse reaction was done where potassium hydroxide and hydrogen were reacted, will the heat be a product or a reactant?