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

Question 1. Why can't we use the same catalyst (i.e. enzyme) to break down fats as we use to break down starches? Catalysts only work for very specific reactions. Catalysts are not soluble in fats. Catalysts are too rare to use for several different reactions. Catalysts are too expensive to use for more than one reaction.

Question 2. Why does increasing temperature increase the rate of reaction? There's more chance of particles colliding because there's more of them in a given volume. There's more chance of particles colliding because they're moving faster. There's more chance of particles colliding because there's a place for them to meet. There's more chance of particles colliding because there's a greater area for them to come into contact.

Question 3. Why does increasing surface area increase the rate of reaction? There's more chance of particles colliding because there's more of them in a given volume. There's more chance of particles colliding because there's a place for them to meet. There's more chance of particles colliding because they're moving faster. There's more chance of particles colliding because there's a greater area for them to come into contact.

Question 4. Which conditions would give the slowest reaction? A 5°C starch solution with a 20% amylase solution. A 5°C starch solution with a 5% amylase solution. A 30°C starch solution with a 20% amylase solution. A 30°C starch solution with a 5% amylase solution.

Question 5. Why does increasing concentration increase the rate of reaction? There's more chance of particles colliding because there's a place for them to meet. There's more chance of particles colliding because they're moving faster. There's more chance of particles colliding because there's more of them in a given volume. There's more chance of particles colliding because there's a greater area for them to come into contact.

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