Author Question: Which statement about iron oxidation is false? A) Oxidation of iron helps to protect rocks ... (Read 152 times)

MirandaLo · **on:** Jul 16, 2018

Which statement about iron oxidation is false?

A) Oxidation of iron helps to protect rocks against weathering.
B) Limonite is an iron hydroxide mineral.
C) Hematite is the most common red iron oxide mineral.
D) Iron is one of the most abundant minerals in Earth's crust, and iron oxidation is a common reaction in chemical weathering on Earth.

Question 2

Identify the products in the following chemical reaction. 2 KalSi3O8(s) + 11 H2O --> 2 K+(aq) + 2 OH-(aq) + 4 H4SiO4 (aq) + Al2Si2O5(OH)4(s)

A) potassium ion, hydroxyl ion, silicic acid, kaolinite
B) kaolinite ion, hydronic ion, salicic acid, caolinite
C) potassium feldspar, water
D) potassium feldspar, basic ion, silicate, kaolinite