What are the important soil solution constituents of inorganic soils?
-:- can contain carbon, but are not based on carbon; simple
- metals, chemical nutrients, acids
- all ionic
What are the important soil solution constituents of organic soils?
-:- compounds of carbon; dominated by C, H, an...
SWS3022 Exam 2*3 Questions & 100%
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What are the important soil solution constituents of inorganic soils?
✓ -:- can contain carbon, but are not based on carbon; simple
- metals, chemical nutrients, acids
- all ionic
What are the important soil solution constituents of organic soils?
✓ -:- compounds of carbon; dominated by C, H, and O; complex
- covalently bonded
- can be natural or synthetic
How do ions differ from the elements in the periodic table?
✓ -:- Elements in the periodic table are electrically neutral. Ions are stable forms of
elements that acquire an electrical charge by gaining or losing electrons.
How can ion hydration impact the size of cations in a soil?
✓ -:- each ion has a different ability to attract water
smaller = larger hydration sphere = larger cation
1:1 and 2:1 aluminosilicate clay minerals are WHAT?
✓ -:- colloidal (small, large specific surface area, highly reactive)
What are the 3 fundamental features of soil mineral colloids?
✓ -:- small, large specific surface area, highly reactive
reactivity is derived from large surface area and electrical charge
Reactivity in soil mineral colloids is derived from what two factors?
✓ -:- large surface area and electrical charge
How is cation exchange capacity measured?
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