Chapter 7 - Weathering

Question 1

role of water in weathering

Answer 1

-freeze-thaw may crack ice

Question 2

role of carbon dioxide

Answer 2

dissolved co2 in water makes carbonic acid

Question 3

hydrolysis

Answer 3

chemical reaction minerals and acidic water

• leaching (dissolving silica and cations)
• hydration (water added to minerals)
• neutralization (solutions made less acidic)

Question 4

role of oxygen

Answer 4

facilitates oxidation in minerals containing iron. allows electrons to be transferred from iron to oxygen

Question 5

principles of chemical stability

Answer 5

solubility

dissolution rate