Sws3022 exam 3 - Study guides, Class notes & Summaries

SWS3022 Exam 3 Questions and Answers All Correct Define an acid - Answer-Any substance which increases the hydrogen ion concentration in a solution. Know the two ions considered acids in soils` - Answer-Hydrogen & Aluminum Understand how aluminum contributes to soil acidity - Answer-Aluminum has the ability to facilitate the splitting of water and react with the resulting H+. Aluminum reacts with water to bind to the hydroxide, leaving the hydrogen ion not neutralized (so lots of H+'s). ...

SWS3022 Exam 3 Chapter 9-12 | Questions And Answers Latest {} A+ Graded | 100% Verified

SWS3022 Exam 3 Questions and Answers Chroma - Answer-Strength of the spectral color (peach to neon orange); high concentrations of Fe cause soils to have a high chroma number Sand particle size separates - Answer-Mostly visible, gritty. Quartz. 0.2-0.05 mm. Silt particle size separates - Answer-Microscopic, smooth/silky.Quartz. 0.05-0.002 mm. Clay particle size separates - Answer-Sub-microscopic, colloidal. Secondary minerals (more reactive). <0.002 mm. How does texture affect o...

SWS3022 Exam 3 Questions and Answers What is "green manure"? - Answer-When the plant dies, the fixed nitrogen is mineralized during decomposition, making it available to other plants. What is the artificial process by which atmospheric N is fixed? How much world energy is used? Also, be familiar with the fact that the product of this process is used as a foundation for the production of a number of N fertilizer types. - Answer-It's called the Haber-Bosch process. It uses 1-2 percent of t...

SWS3022 Exam 3 Study Guide | Questions And Answers Latest {} A+ Graded | 100% Verified

SWS3022 Exam 3 Questions with Complete Solutions What element is strongly limiting to primary productivity? - Answer-Nitrogen What is the basic criteria for diagnosis of N deficiency in plants? - Answer-Yellowing in older tissues What is the organic nitrogen presented and what is it called? - Answer-R-NH2, amine What is deamination and what is its product? - Answer-Strictly applies to nitrogen conversion. When organic nitrogen is converted into inorganic forms in soils. Produces the ...

What is mineral formation? -:- When aluminosilicates dervive charge from substitution of lower-charged cations for higher charged cations in the crystal matrix What charge results from mineral formation? -:- permanent negative charge What substitution happens during mineral formation? -:- - Al3+ for Si4+ - Mg2+ for Al3+ What do charges on silicate crystal edges and on Al/Fe oxides depend on? -:- protonation and deprotonation (results in variable, pH-dependent charge What do organi...

Know the two principal chemical elements in organic chemical compounds -:- Carbon & Hydrogen (maybe Oxygen) Know the two properties that make certain types of organic chemicals highly water soluble. -:- Polarity & Electrical Charge Understand basically the impediments to water solubility for non-ionic hydrophobic organic compounds. -:- a. Solubility: The ease with which substances dissolve in water; the degree to which organic contaminants impact soil and water quality often is relat...

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