Chemistry

Chemistry

Problem

Which change is likely to have the greatest effect on the rate of reaction between a single lump of zinc of mass 1 g and 50 cm350 \text{ cm}^3 of 0.200 mol dm−30.200 \text{ mol dm}^{-3} sulfuric acid at 25 ∘C25 \text{ }^\circ\text{C} ? a. using 50 cm350 \text{ cm}^3 of 0.200 mol dm−30.200 \text{ mol dm}^{-3} sulfuric acid at 25 ∘C25 \text{ }^\circ\text{C} with powdered zinc b. using 100 cm3100 \text{ cm}^3 of 0.200 mol dm−30.200 \text{ mol dm}^{-3} sulfuric acid at 25 ∘C25 \text{ }^\circ\text{C} with a single lump of zinc c. using 50 cm3 of 0.200 mol dm-3 sulfuric acid at 10 °C with powdered zinc d. using 50 cm3 of 0.250 mol dm-3 sulfuric acid at 40 °C with powdered zinc

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