gaseous ammonia is generally referred to as anhydrous ammonia to distinguish it from household ammonia, which is an ammonium hydroxide aqueous solution. gaseous hydrogen chloride is generally referred to as anhydrous to distinguish it from the more commonly used 37% w/w solution in water.
20th century. The total solar eclipse of June 8, 1918 crossed the United States from Washington State to Florida. This path is roughly similar to the August 21, 2017 total solar eclipse and was the last time totality crossed the nation from the Pacific to the Atlantic.
The total phase of this solar eclipse is not visible in Raleigh, but it can be observed there as a partial solar eclipse. The Moon covers a large portion of the Sun, so this is a spectacular sight. More about the August 21, 2017 â Total Solar Eclipse. Add Eclipse to Calendar.