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. 120g of magnesium is added to a 0.5 molar solution of sulphuric acid. After 15 minutes it is still reacting and it has produced 60cm3 of hydrogen gas. What is its rate of reaction?

4cm3 per minute.
2g per cm3.
8g per minute.
0.5cm3 per gram.


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

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


Question 3. When calculating the rate of change in chemistry, which variable could you be observing change?

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


Question 4. 256g of zinc carbonate is added to a 0.1 molar solution of nitric acid. After 8 minutes it is still reacting and it has produced 12cm3 of carbon dioxide gas. What is its rate of reaction?

1.5cm3 per minute.
120cm3 per mole.
32g per minute.
21.33g per cm3.


Question 5. Which is the highest rate of reaction?

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


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