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Solution: A fuel cell car is powered by electrons harvested from the f...

Question

A fuel cell car is powered by electrons harvested from the flameless, low-temperature reaction

How many liters of oxygen is needed to react with 42.0 L of hydrogen at STP?

1. 21.0 L

2. 32.0 L

3. 63.0 L

4. 84.0 L

5. 22.4 L

6. 672 L

7. 42.0 L

8. 2.02 L