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

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

Question 2. 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?

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

Question 3. 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?

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

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

Question 5. Which is the lowest rate of reaction?

1.08kg per hour.
20g per minute.
0.3g per second.
1000g per hour

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