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user100 [1]
3 years ago
11

I WILL MARK Brainest

Chemistry
1 answer:
wolverine [178]3 years ago
5 0
It should be sketch,identify, dig, then set water for the watering times, hope this helps, hope you feel better soon
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Strontium-90 is a radioisotope that will decrease in mass by one-half every 29 years. How many years will it take for a 10.0-gra
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Answer: It will take 29 years for a 10.0-gram sample of strontium-90 to decay to 5.00 grams

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