The experiment is about testing (is aimed to test) the following hypothesis: why thebanknote does not burn in ethanol solution. To do this, we are about to conductthree experiments. Let’s set the banknote with different amounts of ethanol in iton fire. 1) 10% - alcohol, 90% - water 2) 94% - alcohol, 6% - water 3) 50% -alcohol, 50% - water.
In the first case, the bill refusedto burn. In the second case, the bill is almost completely burned down. In thethird case, the bill was covered in flames, but it had not been affected atall. So we can make a conclusion that the water does not allow the banknote to beburned. As the alcohol burns, the water formes the protective layer on thepaper, which can not be burned.
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The experiment is about testing (is aimed to test) the following hypothesis: why thebanknote does not burn in ethanol solution. To do this, we are about to conductthree experiments. Let’s set the banknote with different amounts of ethanol in iton fire. 1) 10% - alcohol, 90% - water 2) 94% - alcohol, 6% - water 3) 50% -alcohol, 50% - water.
In the first case, the bill refusedto burn. In the second case, the bill is almost completely burned down. In thethird case, the bill was covered in flames, but it had not been affected atall. So we can make a conclusion that the water does not allow the banknote to beburned. As the alcohol burns, the water formes the protective layer on thepaper, which can not be burned.