Page-23 of Chemistry Current Affairs, GK & News

Current Affairs : August 5, 2011

NASA discovers First Evidence of Water on Mars NASA Scientists claimed to have discovered the first substantiation of flowing water on Mars Evidence collected by the Mars Reconnaissance Orbiter the first discovery of active liquid water in the ground on the red planet The orbiter circling Mars since 2006, monitored several instances of what seemed ..




Quick Fact Sheet : Gold

1. Gold is a chemical element with the symbol Au (Latin: aurum) and atomic number 792. Gold has traditionally found use because of its good resistance to oxidative corrosion.3. It is attacked by aqua regia* (a mixture of acids), forming chloroauric acid and by alkaline solutions of cyanide but not by single acids.4. * Aqua ..