2. Fill in the blanks for the following sentences (20 pts; 2 pt each) minerals a

Question

2. Fill in the blanks for the following sentences (20 pts; 2 pt each) minerals are inherited from the parent rock and tend to be found in the particle size fractions of soil. Whereas, and minerals are formed by weathering particle size fraction. reactions and these minerals are primarily found in the (b)generates constant structural charge in layer silicates. Whereas, protonation and dissociation of surface hydroxyl groups on metal oxide surfaces as a function of pH results in charge. is a humic substance that is not soluble in acid or base. is a humic substance that is soluble in base but not in acid. is a humic substance that is soluble in acid and base

Explanation / Answer

2. a) Clay minerals are inherited from the parent rock and tend to be found in the Near surface and less that 2 microns particle size fractions of soil. whereas, Quartz minerals are formed by weathering reactions and those minerals are primarily found in the Greater than 2 microns particle size fraction.

b) Alteration, Recrystallization generates constant structural change in layer silicates. Whereas Protonation and dissociation of surface hydroxyl groups on metal oxide surfaces as a fuction of pH results in positively charge.

c) Humin is a humic substance that is not soluble in acid or base.

Humicacid is a humic substance that is soluble in base but not in acid.

Fulvicacid is a humic substance that is soluble in acid and base.

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