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.
Question 2
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.
Question 3
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.
1
Question 4
4.
Plot the following from a reaction between HCl and Mg.
Question 5
5.
Describe the pattern in the graph
Question 6
6.
Use the graph to calculate the rate of reaction over the first 20 seconds.
Question 7
7.
The experiment was repeated using magnesium powder. Draw a line of best fit for this new reaction.
