Half Life and Log Properties

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What is half-life?

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The half-life of a substance is the time required for half of the substance to decay or be eliminated.

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If a substance has a half-life of 2 minutes, how much of a 80g sample remains after 10 minutes?

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2.5g

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What is the formula for calculating remaining quantity after a certain time using half-life?

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Remaining quantity = Initial quantity * (1/2)^(time elapsed / half-life)

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What is the product property of logarithms?

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What is the quotient property of logarithms?

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What is the power property of logarithms?

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