Portable oxygen bar. Oxygen bars were a fad for a while, I think it's kind of over now, but you can still buy cans of concentrated oxygen (they say they are about 80%, compared to the 21% natural concentration in air) meant to be inhaled for non-medical reasons. In a proper oxy...
Sodium is an abundant element that is essential for human nutrition and important for many chemical processes. Here are 10 interesting facts.
Oxygen Element FactsThe chemistry of respiration: Antoine Lavoisier carries out an experiment to study the oxygen content of air exhaled from a man's lungs. Lavoisier's wife Marie-Anne makes notes. She also created the engraving from which this image was taken....
Oxygen is the element with atomic number 8 and element symbol O. Under ordinary conditions, it can exist as a pure element in the form of oxygen gas (O2) and also ozone (O3). Here is a collection of facts about this essential element. Oxygen Basic Facts Atomic Number:8 Symbol:O Atomic...
Facts About Oxygen Breathe in … breathe out. Ahh. Hooray for oxygen, the element that keeps much of life on Earth humming. Element No. 8 on thePeriodic Table of the Elementsis a colorless gas that makes up 21 percent of Earth's atmosphere. Because it's all around, oxygen is easy to...
The word oxygen is derived from a combination of two Greek words: oxys, which means acid, and genes, which means “formation.” The element oxygen was named by Antoine Lavoisier. Lavoisier conducted the same experiments as Priestley to learn more about the gas, and he discovered that air ...
The samples (except gases) weigh about 0.25 grams each, and the whole set comes in a very nice wooden box with a printed periodic table in the lid. To learn more about the set you can visit my page about element collecting for a general description and information about how to buy one...
Three interesting facts about the element Krypton include: - It is relatively inert and only forms a handful of known compounds. - It was discovered in 1898 - It is used for producing lighting and lasers, and to measure the formation of elements in space. Is krypton a real element?
当当中国进口图书旗舰店在线销售正版《预订 Fun Facts about Oxygen: Chemistry for Kids The Element Series - Children’s Chemistry Books: 97815》。最新《预订 Fun Facts about Oxygen: Chemistry for Kids The Element Series - Children’s Chemistry Books: 97815》
Named after the Greek wordnitron, for "native soda," andgenesfor "forming," nitrogen is the fifth most abundant element in the universe. Nitrogen gas constitutes 78 percent of Earth's air, according to theLos Alamos National Laboratory. On the other hand, theatmosphere of Marsis only 2.6 pe...