dylanentwistle2354 dylanentwistle2354

09-11-2017
Chemistry

contestada

Radium-221 has a half-life of 30 s. how long will it take for 95% of a sample to decay

Respuesta :

EmiLy4444 EmiLy4444

15-11-2017

Radium-221 has a half-life of 30 s. how long will it take for 95% of a sample to decay

this would be 2.22 seconds

Answer Link

Otras preguntas

According to a marketing research study, American teenagers watched 16.5 hours of social media posts per month last year, on average. A random sample of 20 Amer

What is so interesting about la cueva in the northern side of Chile?

Describe two effects world war 2 had on American domestic society and life styles

Scott is feeling dissatisfied in his relationship. Although his girlfriend often joins him in his weekly rock climbing and has hinted to him that she wants to s

Scott is feeling dissatisfied in his relationship. Although his girlfriend often joins him in his weekly rock climbing and has hinted to him that she wants to s

Jane purchased a concert ticket on a web site. The original price of the ticket was $55. She used a coupon code to receive a 20% discount. The web site applied

How does the use of dialogue most clearly contribute to the aesthetic impact of the radio broadcast? a) It shows readers that many people were involved in the

Which type of rock forms deepest inside Earth?OA. MetamorphicOB. SedimentaryINOC. Igneous

4 On a bright, sunny day, which time of day can be predicted to create the shortest shadows? F 9:00 A.M. H 3:00 P.M. G 12:00 P.M. J 12:00 A.M.

The policy of the United States toward the Soviet Union after World War II was shaped by: O A. a lack of advanced weapons technology. O B. an understanding that