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Checking a Reaction When One Signal Stays Flat 4 questions
Checking a Reaction When One Signal Stays Flat
Base your answers on the information provided and your knowledge of chemistry. Use the 2025 Chemistry Reference Tables as needed.
A display follows a model reaction that converts one B particle into one C particle. Channel X gives one signal unit for each B or C particle. Channel Y gives two signal units for each B particle and one for each C particle. The particles stay in the same liquid throughout.
| Time (s) | Channel X | Channel Y |
|---|---|---|
| 0 | 6 | 12 |
| 10 | 6 | 10 |
| 20 | 6 | 6 |
Question 1
Which quantity does channel X report directly?
- B count only
- C count only
- The combined B and C count
- The amount of B converted per second
Question 2
Complete the table with the B and C counts at 10 s. Explain how the channel readings give the counts.
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Question 3
Compare the average C formation rates from 0 to 10 s and from 10 to 20 s.
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Question 4
A student says the flat X signal establishes that the reaction did not occur. Evaluate the claim with both channels.
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