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3 years ago

Some soils are made mostly of loess. loess is silt-sized sediment deposited by _______.

2 answers:

8 0

There are soils that are made up of loess. Loess is a sediment that is formed from silt deposits due to wind. The composition of the silt is clay and sand. The components are cemented together by calcium carbonate. The silts are blown by wind and accumulate in a singular location.

Angelina_Jolie [31]3 years ago

5 0

The answer to: Some soils are made mostly of loess. Loess is silt-sized sediment deposited by Wind. The answer is wind

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Key Points

There are two conceptual steps to form a solution, each corresponding to one of the two opposing forces that dictate solubility.

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The second conceptual step is solvation, which corresponds to the force of the solute-solvent intermolecular attraction that needs to be formed in order to form a solution.

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Term

intermolecular forcesattractive and repulsive forces between molecules

The strength of the intermolecular forces between solutes and solvents determines the solubility of a given solute in a given solvent. In order to form a solution, the solute must be surrounded, or solvated, by the solvent. Solutes successfully dissolve into solvents when solute-solvent bonds are stronger than either solute-solute bonds or solvent-solvent bonds.

Qualitatively, one can determine the solubility of a solute in a solvent by using the rule “like dissolves like”. In general, solutes whose polarity matches that of the solvent will generally be soluble. For example, table salt (NaCl) dissolves easily into water (H2O) because both molecules are polar.

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3 years ago

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