Answers by Georgy Pashkov
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Answers by Georgy Pashkov

Answers by Georgy Pashkov
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The​ half-life of​ plutonium-241 is approximately 13 years. a. How much of a sample weighing 2 g will remain after 70 ​years? b. How much time is necessary for a sample weighing 2 g to decay to 0.1​ g?
answered Jan 13, 2020
5 votes
59.8k views
Knowing that an unknown metal seems to decay by half every 8.75 years, what is its approximate annual decay rate?
answered Jan 1, 2020
5 votes
164k views
Decide if the following sentence is grammatically correct or incorrect. Mi hermano siempre tienes su cuatro limpio, él es una persona muy limpia.
answered Oct 22, 2019
0 votes
131k views
Cells will usually divide if they receive the proper signal at a checkpoint in which phase of the cell cycle? see concept 12.3 (page 244) view available hint(s)
answered Aug 29, 2019
6 votes
170k views
Is this the correct procedure for cleaning volumetric glassware prior to making a measurement: first, rinse with tap water. Second, rinse with deionized water from your wash bottle. Finally, rinse once
answered Aug 27, 2019
5 votes
30.8k views
_____ reasoning is sometimes called bottom-up reasoning.
answered Apr 28, 2019
6 votes
156k views
3/7x= - 4 2/7 find the value of x
answered Apr 17, 2019
4 votes
211k views
By how much does a 3 - 2a exceed a 2 + a - 6?
answered Sep 22, 2018
1 vote
147k views
Whta would you call this?
answered Jul 28, 2018
2 votes
143k views
A timeline is most effective for organizing information that ?
answered May 6, 2018
3 votes
206k views
Which of the following did Justinian I reconquer
answered Apr 16, 2018
3 votes
28.3k views
Paula weighed 65.5 kilograms before she started training she as lost 3500grams how much does she weigh
answered Feb 28, 2018
3 votes
126k views
Solve for y when x = 0 y-2=2/3(x-1)
answered Jan 15, 2018
1 vote
212k views
Universal Travel Inc. borrowed $500,000 on November 1, 2013, and signed a 12-month note bearing interest at 6%. Interest is payable in full at maturity on October 31, 2014. In connection with this note,
answered Nov 27, 2017
4 votes
170k views
Which of these is a chemical property? A.boiling point B.Flammability C.Density D.Solubility
answered Sep 5, 2016
1 vote
26.1k views
An odd number under 50 with least 5 factors
answered May 25, 2016
3 votes
73.0k views
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