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Distinguish between a galvanic (voltaic)cell and an electrolytic cell.
Barack Obama
The 44th President of the United States, serving from 2009 to 2017, and the first African American to hold the office.
Michelle Robinson
Before marrying Barack Obama, Michelle Robinson was her name, eventually becoming the First Lady of the United States.
Grams
A metric unit of mass equal to one thousandth of a kilogram, used commonly in cooking, science, and medicine.
Earplugs
Small devices inserted into the ear canal to protect the ears from loud noises, water, or to block out sound while sleeping.
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