An oxidation reaction; prevented by Galvanization (coating with Zinc). Quick Preparation Tips for SSC Chemistry

Mercury is a liquid metal at room temperature; Bromine is a liquid non-metal. Ores: Memorize common ones: Iron: Hematite, Magnetite. Aluminium: Bauxite. Lead: Galena. Alloys: Brass: Copper + Zinc. Bronze: Copper + Tin. Steel: Iron + Carbon. 7. Carbon and Its Compounds

Use tricks to remember the Reactivity Series or the Periodic Table groups.

Keep a list of chemical names and formulas (like Plaster of Paris or Epsom Salt).

Caused by bicarbonates, chlorides, and sulfates of Calcium and Magnesium.