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Laabri

Year 11 Week 18 Rates of Reaction

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Last updated over 1 year ago
7 Nsɛmmisa
2
Asemmisa {{asɛmmisaAhyɛnsode}}
1.

The rate of a reaction between hydrochloric acid and calcium carbonate can be increased by increasing the concentration of the acid. Explain why, using ideas about collisions between particles.

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2.

Describe and explain the effect that increasing pressure has on the rate of a reaction between oxygen and nitrogen.

Explain why, using ideas about collisions between particles.

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3.

Limestone (calcium carbonate) reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide. A student notices a greater rate of effervescence when they use powdered limestone, compared to larger chunks.

Explain why, using ideas about collisions between particles.

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4.

Plot the following from a reaction between HCl and Mg.

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5.

Describe the pattern in the graph

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6.

Use the graph to calculate the rate of reaction over the first 20 seconds.

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7.

The experiment was repeated using magnesium powder. Draw a line of best fit for this new reaction.