Hide Tools
Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocont...
Chemistry, 25.02.2020 19:02 bertha4082
Hide Tools
Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocontrast dye containg Barium-142. The half-life of Ba-142 is
10.6 minutes and its decay is followed by X-ray. After one half-Life, drag and drop answer here of Ba-142 remains. After 31.8 minutes,
drag and drop answer here of Ba-142 remains. After drag and drop answer here half-lives, 11.7 mg of Ba-142 remains. After
drag and drop answer here minutes, 0.366 mg of Ba-142 remains. Finally, after approximately 3.5 hours - drag and drop answer here half-
lives, only 0.000358 mg remains. The dye is no longer visible to the X-ray and Janice's study is over.
Answers: 3
Chemistry, 22.06.2019 11:00
Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.
Answers: 1
Chemistry, 23.06.2019 01:00
Which statement best describes isomers? a. isomers are alcohols that have the same functional group. b. isomers have at least one carbon-carbon double bond. c. isomers have the same molecular formula but different structural properties.
Answers: 1
Chemistry, 23.06.2019 02:30
Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .
Answers: 3
Advanced Placement (AP), 16.08.2021 07:20
Mathematics, 16.08.2021 07:20
Mathematics, 16.08.2021 07:20
English, 16.08.2021 07:20
Mathematics, 16.08.2021 07:20
Business, 16.08.2021 07:20
Social Studies, 16.08.2021 07:20
Health, 16.08.2021 07:20
Mathematics, 16.08.2021 07:20
Physics, 16.08.2021 07:20
English, 16.08.2021 07:20
English, 16.08.2021 07:20
Mathematics, 16.08.2021 07:20