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. Which is the lowest rate of reaction? 20g per minute. 1.08kg per hour. 1000g per hour 0.3g per second.

Question 2. 270g of calcium carbonate is heated to 900°C for 30 minutes until it has completely thermally decomposed. What is the rate of reaction? 0.3g per °C. 0.033 minutes per °C. 0.11 minutes per gram. 9g per minute.

Question 3. When calculating the rate of change in chemistry, which variable will you usually be dividing by? Volume. Mass. Concentration. Time.

Question 4. When calculating the rate of change in chemistry, which variable could you be observing change? Time taken. Amount of product formed. Temperature of solution. Odour.

Question 5. 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 60cm^{3} of hydrogen gas. What is its rate of reaction? 2g per cm^{3}. 4cm^{3} per minute. 0.5cm^{3} per gram. 8g per minute.

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