Chemistry, 22.10.2020 18:01 lizziefayx3498
Which statement describes one feature of Rutherford’s model of the atom?
A. The atom is mostly empty space.
B. The atom cannot be divided into smaller particles.
C. Electron clouds are regions where electrons are likely to be found.
D. The electrons are located within the positive material of the nucleus.
Answers: 3
Chemistry, 21.06.2019 19:00, RedDemon59
Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?
Answers: 2
Chemistry, 22.06.2019 02:50, giiffnlojd
Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.
Answers: 3
Chemistry, 22.06.2019 05:30, palcochran1313
Describe the interaction that occurs between two objects with the same electrical charge.
Answers: 1
Which statement describes one feature of Rutherford’s model of the atom?
A. The atom is mostly empt...
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