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. Which is the lowest rate of reaction?

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


Question 2. When calculating the rate of change in chemistry, which variable will you usually be dividing by?

Concentration.
Time.
Mass.
Volume.


Question 3. 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 cheaper.
Producing more product in a given time is usually purer.
Producing more product in a given time is usually safer.


Question 4. Which is the highest rate of reaction?

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


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 60cm3 of hydrogen gas. What is its rate of reaction?

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


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