the base unit for the amount of a substance is ____.molemeterkelvinsecondsgram2. choose the best answer.the base unit for temperature is ____.kilogramkelvinmetergramliter

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# Brief Explanations:
- For the first question: The mole ($mol$) is the SI base unit for the amount of a substance. A meter ($m$) is for length, kelvin ($K$) for temperature, seconds ($s$) for time, and gram ($g$) is a metric unit for mass (not an SI base unit, the SI base unit for mass is the kilogram).
- For the second question: Kelvin ($K$) is the SI base unit for temperature. Kilogram ($kg$) is for mass, meter ($m$) for length, gram ($g$) is a non - SI unit for mass, and liter ($L$) is a unit for volume.

# Answer:
1. mole
2. kelvin

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