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Tracking Two Reactants in a Mixed Ore Model 4 questions
Tracking Two Reactants in a Mixed Ore Model
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A mineral display models two independent reactions. In the first, each P unit uses two reagent units and yields one blue product. In the second, each Q unit uses three reagent units and yields one green product. The display records products separately. No other process uses the reagent.
| Quantity | Recorded count (model units) |
|---|---|
| Reagent supplied | 50 |
| Blue product made | 8 |
| Green product made | 10 |
Question 1
How many reagent units were used to make the blue product?
- 4
- 8
- 16
- 24
Question 2
Calculate the reagent remaining after both reactions. Use the two different ratios.
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Question 3
A simpler detector reports only 18 product units. Explain why that number alone cannot establish how much reagent remains. Give a second possible blue and green count.
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The next sample makes the same number of product units in total, but three product units switch from blue to green.
Question 4
Find the least reagent count that allows the new product record. Explain how it compares with the first supply.
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