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2. Properties of water - Wikipedia

   en.wikipedia.org/wiki/Properties_of_water

   Pure water containing no exogenous ions is an excellent electronic insulator, but not even "deionized" water is completely free of ions. Water undergoes autoionization in the liquid state when two water molecules form one hydroxide anion (OH −) and one hydronium cation (H 3 O +). Because of autoionization, at ambient temperatures pure liquid ...

3. Arizona - Wikipedia

   en.wikipedia.org/wiki/Arizona

   The 1860 census reported the population of "Arizona County" to be 6,482, of whom 4,040 were listed as "Indians", 21 as "free colored", and 2,421 as "white". [ 76 ] [ 77 ] Arizona's continued population growth has put an enormous stress on the state's water supply. [ 78 ]

4. Unit 731 - Wikipedia

   en.wikipedia.org/wiki/Unit_731

   Unit 731 (Japanese: 731部隊, Hepburn: Nana-san-ichi Butai), [note 1] short for Manchu Detachment 731 and also known as the Kamo Detachment [3]: 198 and the Ishii Unit, [5] was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War ...

5. Iced coffee drinkers can get a cheaper caffeine fix at home ...

   www.aol.com/news/iced-coffee-drinkers-cheaper...

   That’s compared with the $4.75 its Hyde Park, Tampa, location charges for either a 20-ounce cold brew ordered online for pickup or a 10.5-ounce canned option.

6. The best sales this weekend to know about: Vacuums, Coach ...

   www.aol.com/lifestyle/the-15-best-sales-this...

   Right now Coach Outlet is running an extra 15% off already-on-sale styles like this tote purse that's perfect for work. It's also a good time to save during Macy's summer sale, like this retro ...

7. Heavy water - Wikipedia

   en.wikipedia.org/wiki/Heavy_water

   Water containing 50% 1 H and 50% 2 H in its hydrogen, is actually about 50% HDO and 25% each of H 2 O and D 2 O, in dynamic equilibrium. In normal water, about 1 molecule in 3,200 is HDO (one hydrogen in 6,400 is 2 H), and heavy water molecules (D 2 O) only occur in a proportion of about 1 molecule in 41 million (i.e. one in 6,400 2) [citation ...

8. Power of two - Wikipedia

   en.wikipedia.org/wiki/Power_of_two

   A power of two is a number of the form 2n where n is an integer, that is, the result of exponentiation with number two as the base and integer n as the exponent . Powers of two with non-negative exponents are integers: 20 = 1, 21 = 2, and 2n is two multiplied by itself n times. [ 1][ 2] The first ten powers of 2 for non-negative values of n are:

9. Water distribution on Earth - Wikipedia

   en.wikipedia.org/wiki/Water_distribution_on_Earth

   The total volume of water on Earth is estimated at 1.386 billion km 3 (333 million cubic miles), with 97.5% being salt water and 2.5% being freshwater. Of the freshwater, only 0.3% is in liquid form on the surface. [ 2][ 3][ 4] Because the oceans that cover roughly 70.8% of the area of Earth reflect blue light, Earth appears blue from space ...