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100 POINTS AND BRAINLEIST TO WHOEVER ANSWERS
Do you think a chemical reaction took place in Part 1 when you added the galvanized nail to the acid and water, and in Part 2 when the yeast was added to the hydrogen peroxide? Explain your answer.
2. Did the same result occur in both parts when you held up a lighted splint to the jar’s mouth? What can you conclude from this about the identity of the gas(es) in Parts 1 and 2?
3. In both parts of the activity, you conducted a second trial without having to remix the chemicals. How was this possible?
4. In 1937, a large passenger airship called the Hindenburg mysteriously caught fire. Because the airship was filled with hydrogen gas, it immediately exploded once the fire reached the gas. Given this information, do you think one of the reactions above may have produced hydrogen? Use your data to explain your answer. (3 points)
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