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13 cards from this deck
Change in concentration per unit time of any one reactant or product
ΔconcentrationΔtime\frac{\Delta \text{concentration}}{\Delta \text{time}}ΔtimeΔconcentration
Rate of reactions producing gases (H₂, O₂, CO₂)
Zinc + dilute sulfuric acid → hydrogen gas
Gas produced displaces water in graduated cylinder
Rapid increase at first, then slows down
Steep initial slope, gradually flattening, final plateau
At start when reactant concentrations are highest
Total change in volume ÷ total time
Draw tangent line to curve at specific time point
Shows reaction speed at maximum reactant concentrations
Instantaneous rate at that time
Reaction stopped; one reactant completely used up
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