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Author Question: Some soil colloids exhibit positive charges under highly acid conditions. To what are these charges ... (Read 126 times)

yoroshambo

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on: Jul 22, 2018
Some soil colloids exhibit positive charges under highly acid conditions. To what are these charges likely due?
 
  A) protonation of some hydroxy groups by excess H+ ions
  B) substitution of lower valent atoms for higher valent atoms in the octahedral sheet
  C) the adsorption of Al3+ ions on the colloid
  D) increase in the level of H+ ions on the exchange complex
  E) the release of some OH- ions leaving an unsatisfied positive charge on the colloid

Question 2

The amount of both P and K fertilizer applied to U.S. farmland has increased dramatically since 1980 as American farmers attempt to maximize profits and meet record demands for food.
 
  Indicate whether the statement is true or false
The Nature and Properties of Soils ¦ Weil, Well, Brady ¦ 15th Edition
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ashely1112

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Reply #1 on: Jul 22, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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yoroshambo

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Reply 2 on: Jul 22, 2018
Excellent

cpetit11

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Reply 3 on: Yesterday
:D TYSM

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