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1) Carbon-14 has a half-life of 5730 years. If you start with a 2.37 g sample, how much would remain after 17,190 years?
2 ) Manganese-56 is a beta emitter with a half-life of 2.6 hours. What is the mass of manganese-56 in a 500 mg sample at the end of 10.4 hours?
3) A sample of thorium-234 has a half-life of 24.1 days. If that sample is allowed to decay for 96.4 days and 4.67 grams remains, what was the original mass of the sample?
Answers: 3
Chemistry, 22.06.2019 02:40, alexandraparava
For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c
Answers: 2
Chemistry, 22.06.2019 09:40, loveoneonly9153
Consider this initial-rate data at a certain temperature for the reaction described by
Answers: 1
Chemistry, 22.06.2019 15:20, Tringirl233
Identify arrows pointing to bonding electrons. done h-0-0-h ) intro
Answers: 3
NEED HELP ASAP. PLEASE SHOW WORK
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