Chemistry, 16.10.2019 00:00 queenx1xshay
The half-life of plutonium-239 is 24300. if a nuclear bomb released 8kg of this isotope, how many years would pass before the amount is reduced to 1kg?
Answers: 2
Chemistry, 21.06.2019 17:30
Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge
Answers: 1
Chemistry, 22.06.2019 16:00
What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided
Answers: 2
Chemistry, 22.06.2019 22:00
The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.
Answers: 2
Chemistry, 23.06.2019 01:30
Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.
Answers: 1
The half-life of plutonium-239 is 24300. if a nuclear bomb released 8kg of this isotope, how many ye...
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