Science task 90: A Tasmanian senior class applies the information to an ecology, health or regional-access investigation. A tracer starts at 0.20 mol and undergoes 2 half-lives of 4 minutes each. How much remains?

Science task 90: A Tasmanian senior class applies the information to an ecology, health or regional-access investigation. A tracer starts at 0.20 mol and undergoes 2 half-lives of 4 minutes each. How much remains?

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