4th Period: Potassium and Calcium—Electrons go into the fourth energy level. A small piece of sodium metal is placed in water. The sodium reacts with the water and gets very hot, producing sodium ...
A few drops of dilute sodium hydroxide solution react to form a white precipitate with aluminium ions, calcium ions and magnesium ions. However, if excess sodium hydroxide solution is added ...
How a poor boy from Scotland became the richest man on Earth I'm on a mission to visit every Irish pub in the world. I've been to 94 so far. These are the best, the worst and the weirdest ...
It finally happened. Sweater season has arrived. Break out the fuzzy socks, crank up the heater and flick on that virtual fireplace. It's time to get toasty. In kitchens across South Texas, that also ...