Answer:
Adding NaCl to a saturated PbCl2 solution will decrease the Pb2+ concentration.
Explanation:
If a solution is saturated this means it cannot dissolve more material.
PbCl2 ⇆ Pb2+ + 2Cl-
Adding more Cl- in the solution is the same thing as trying to dissolve more of the material. In the solution, the concentration of Cl- will increase.
In order for the Ksp to maintain a constant value, the concentration of Pb2+ must decrease if the concentration of Cl- is increased.
Adding NaCl to a saturated PbCl2 solution will decrease the Pb2+ concentration.
Answer:
D. 0.4 (mol/L)/S
Explanation:
You simply have to plug in the given values into the rate law.
Rate = k[A][B]
Rate = (0.1)(1)²(2)²
Rate = (0.1)(1)²(4)²
Rate = 0.4
Both California and Peru have or have had significant gold deposits because of their proximity to where two tectonic plate boundaries meet. Off the California coast there is the Pacific Plate and the North American Plate which meet at the San Andreas Fault but there also is the Farallon Plate which apparently has subducted somewhat below the North American Plate. Off Peru, the Nazca Plate is subducting under the South American Plate and which has caused the Andean orogeny.
D: After they emit light, electrons are sucked into the nucleus of the atom.
26. B
27. D
28. C
Hope this helped ☺️
