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7. Lawrencium has a half-life of 3.00 minutes. I started with a 100.0 g sample. After 45.0 minutes how much of my sample remains Lawrencium?

asked Apr 2, 2020

Chemistry
middle-school

1 answer

1 vote

159k views

What is the definition of the Latin word Historia? a. the study of books b. the study of artifacts c. the study of past events d. the study of archaeology

asked Apr 3, 2019

History
middle-school

2 answers

3 votes

183k views

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