(2) QID: 6797 In a \"potato clock,\" a piece of zinc and a piece of copper are s
ID: 546549 • Letter: #
Question
(2) QID: 6797 In a "potato clock," a piece of zinc and a piece of copper are stuck into opposite ends of a potato. Wires from the zinc and the copper are connected to a digital clock. Enough electric current flows through this circuit to power the clock. Based on this evidence, what can you conclude about potatoes? They contain almost no water. They contain small amounts of sugar. They contain electrolytes They contain nonelectrolytes. (3) QID: 6824 The physical phase of a solution can be only a liquid a liquid or a gas a liquid or a solid a solid, liquid or gasExplanation / Answer
a)
ignore water, since water is not considered an electric current conductor, but rather a solvent/media
b)
ignore sugar, since those will not form electrolytes
c)
this must definetively contain electrolytes, since they are helping to conduce electricity
d)
this is true, but will not have nothing to do with electrivity being shown in the potatoe
Q3
solutions can be all phases, not only liquid
therefore
a solid, lqiuid or gas
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