Science task 70: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.20 mol and undergoes 2 half-lives of 3 minutes each. How much remains?

Science task 70: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.20 mol and undergoes 2 half-lives of 3 minutes each. How much remains?

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