Chemistry, 30.10.2020 20:10, brydenskl814
Question: Wind occurs when one mass of air rises and another mass of air moves in to replace it. What causes the differences in the two masses of air?
A. uneven heating by solar energy
B. tidal effects of the sun and moon
C. varying amounts of carbon dioxide
D. changing percentages of oxygen and nitrogen
Answers: 1
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
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