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Electrochemical cell labPlease help?

In the lab, we created a quot;batteryquot; by using aluminum foil, a paper towel, a penny, and vinegar, which was then measured by a voltmeterEverything worked fine, and eventually we managed to get it to generate a chargeHowever, one - actually two of the questions stumped me a littleI honestly don't understand the concept at ALLHere are the two questions:1) Suppose you were to cover your penny with a paper towel soaked in vinegar and then added an identical stack of aluminum, paper towel soaked in vinegar, and pennyIf you touched one lead on the bottom piece of aluminium foil and one lead on the top penny, what reading would you expect on the voltmeter? Explain.2) What is another question about electrochemical cells that you could investigate using these materials?Please also explain your answer so I can potentially grasp a better understanding of thisThanks in advance.

Answer:

Off the cuff ,Hydrogen when dissociated creates a 33,000lb pressure,momentarily,and doubles in size.When vibrating at 17,480 very little electric current is necessary to dissociate Hydrogen gas from water.

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