Question

which will react faster a chalk or chalk powder and how?
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Answer 1

Answer:

The more finely divided the solid is, the faster the reaction happens. A powdered solid will normally produce a faster reaction than if the same mass is present as a single lump. The powdered solid has a greater surface area than the single lump.

The crushed chalk reacts faster because the vinegar can reach more of the chalk when there is more exposed surface area. Therefore, increasing the surface area increases the rate of the reaction

Explanation:

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Answer 2

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