A catalyst...

Why does reaction rate increase as the temperature increases?

Why does reaction rate increase as the concentration increases?

Which of the following does NOT increase the rate of a reaction?

Which of the following statements about collisions is correct?

How could I make the reaction between acid and marble chips faster?

Catalysts do not need to be replaced frequently because

Experiment A uses excess acid and 5g of chalk powder, experiment B uses excess acid and 10g of chalk powder

To make an experiment a fair test you must

2 experiments using chemicals A and B are carried out. Reaction A finishes after 95 seconds and reaction B finishes after 1 minute 35 seconds. Which of the following is correct.

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