subject
Chemistry, 04.12.2020 23:30 fansofboys

If a 3.0 picogram (pg) sample of curium-245 has a half-life of 8500 years, which conclusion can be drawn? A: The curium-245 sample must have an age of at least 8500 years.
B: The curium-245 sample must have an age of less than 8500 years.
C: The curium-245 sample will have a mass of about 6.0 pg after 8500 years.
D: The curium-245 sample will have a mass of about 1.5 pg after 8500 years.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 19:30
How many molecules of sucrose c12h22o11 are there in 454 grams of sucrose
Answers: 1
question
Chemistry, 23.06.2019 10:00
What is the density, d, of a substance with a volume of v = 12.5 cm3 and a mass of m = 74.4 g ?
Answers: 1
question
Chemistry, 23.06.2019 11:30
Which of the following is the most likeley example of an favorable mutation a. a mutation that makes a rabbit able run faster b. a mutation that changes the rabbit's fur to bright orange c. a mutation that changes the color of the rabbit's eyes d. a mutation that gives a rabbit a third ear
Answers: 1
question
Chemistry, 23.06.2019 11:50
It takes 155. kj/mol to break a fluorine-fluorine single bond. calculate the maximum wavelength of light for which a flouine-flouring single bond could be broken by absorbing a single photon
Answers: 1
You know the right answer?
If a 3.0 picogram (pg) sample of curium-245 has a half-life of 8500 years, which conclusion can be d...
Questions
question
Mathematics, 02.09.2019 00:30
question
Mathematics, 02.09.2019 00:30
question
Mathematics, 02.09.2019 00:30
Questions on the website: 13722363