Snapquiz - Rate of Reaction

This is the Snapquiz on Rate of Reaction. Click here or use the embedded video if you haven't watched the lesson yet.


Question 1. Why is a high rate of reaction usually more desirable to industrial chemists?

Producing more product in a given time is usually easier.
Producing more product in a given time is usually purer.
Producing more product in a given time is usually safer.
Producing more product in a given time is usually cheaper.


Question 2. When calculating the rate of change in chemistry, which variable could you be observing change?

Colour.
Time taken.
Amount of reactant used up.
Amount of fizzing.


Question 3. A reaction between a 1.0 molar hydrochloric acid solution and some 15% pure copper carbonate ore takes 12 minutes to form 4.8g of copper chloride. What is its rate of reaction?

25% per minute.
0.4g per minute.
0.067 moles per percent.
0.32g per percent.


Question 4. Which is the highest rate of reaction?

0.36kg per hour.
7g per minute.
0.1g per second.
300g per hour.


Question 5. When calculating the rate of change in chemistry, which variable could you be observing change?

Temperature of solution.
Time taken.
Odour.
Amount of product formed.


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