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What year was neon discovered?

Neon is a noble gas with an atomic number of 10. Its atomic weight is 20.1797 grams per mole, and its melting point is -415.46 degrees Fahrenheit. Neon's name comes from the Greek word "neos," which signifies new.Because it is a noble gas, neon is inert and does not form compounds. However, scientists do believe that it may possibly form a compound with fluorine. Neon is found in the Earth's atmosphere. Some uses of neon are for advertising signs, refrigerant and in gas lasers.

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What is the chemical name of vinegar?

While water makes up the bulk of vinegar's volume, acetic acid is the main active ingredient. The concentration of acetic acid in vinegar varies considerably from one variety to another. Distilled vinegar usually has the lowest concentration of acetic acid, at 5 to 8 percent by volume. Acetic acid concentrations in spirit of vinegar, a more concentrated form of vinegar, can sometimes go as high as 20 percent.

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What unit is used to measure the loudness of sound?

Phon is based on sounds heard at a 1000 hertz level. The sound is then rated by the listeners of the sound. If a person says that the sound seems to be around 50 decibles, then it is expressed as 50 phon, which means a 50 decibel sound at 1000 hertz. Sone is based on orchestral sound, where the lowest sound is assigned 40 phons. Each sone doubles in the level, so 40 phons is one sone, 50 phones is two sones and 60 is four sones, continuing all the way up to 100 phons.

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What is gamma globulin?

There are five major types of gamma globulins found in the human body: IgA, IgG, IgM, IgE and IgD. IgA antibodies are found on the body's surface. They are also found in saliva, tears and blood. IgG antibodies are found in all body fluids and are the most common antibodies. IgM are the largest antibodies in the body and are found in the blood and lymph fluid. IgE antibodies are found in the lungs and mucous membranes and cause the body to react against allergens. IgD antibodeis are found in the abdominal and thoracic cavities and their function is still unknown.

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Where are the hydrogen atoms of glucose at the end of cellular respiration?

Cellular respiration is the process in which energy in glucose is transferred to ATP. The glucose energy is used to produce ATP. This activity allows organisms to use (or release) energy stored in the chemical bonds of glucose. During respiration, glucose is oxidized to produce energy. Reduction of oxygen releases water. Carbon dioxide is released from the carbon atoms of the sugar molecules.

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Why is stem cell research beneficial?

Stem cell therapies are already being applied through stem cell transplants, according to the American Cancer Society. For instance, an autologous transplant is a method in which new cells are extracted from the patient's blood or bone and reused to treat the disease. This form of cell extraction is normally used to treat testicular cancer, lymphoma and leukemia. Researchers are also looking into the possibility of autologous transplants treating other diseases, such as Crohn's disease and systemic sclerosis.\nThe Washington Post mentions the field of pluripotent stem cells and the c..

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How do rocks get their color?

Color is a useful criterion to consider when identifying unknown rocks. While color alone does not often provide a positive identification, it is helpful when considered along with the unknown rock’s hardness, geographic origin or structure. The exterior colors of rocks can become altered by erosion, so it is best to break open a rock and observe the color of the inside. It may also be helpful to observe the color while the rock is both wet and dry.\nAside from erosion, a process called chemical weathering may also cause the color of rocks to change. For example, rocks containing iron tend t..

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Which element has the highest electronegativity?

Electronegativity is a measure of how tightly an atom holds on to its electrons. Fluorine, with seven electrons in its outermost energy level, has a high affinity for its electrons. It holds onto its existing electrons securely and also wants to collect another electron from other elements. The electronegativity of elements on the periodic table increases from bottom to top and from left to right. Fluorine lies at the top right of the table and has the highest electronegativity.

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What is mineral oil made of?

In addition to petroleum-based oils, mineral oils can also be aromatic-based or naphthenic-based. Mineral oils of all types are used in a wide variety of applications, including industrial, medical, veterinary and household uses. In the skin care industry, mineral oil is commonly used as a base for cosmetics and as a cleanser for makeup removal. It is occasionally used in the food industry, particularly to give candy a shiny appearance.

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What is the formula for nitrogen trihydride?

Nitrogen trihydride, or NH3, is a covalent compound with a single nitrogen atom linked to three hydrogen atoms. It is also commonly known as ammonia. It has no color, but has a pungent smell. It is also highly soluble in water. Nitrogen trihydride has a wide range of useful applications; it is used in manufacturing a number of nitrogen-based organic and inorganic chemicals, plastics, explosives, textiles and fertilizers. It can also be used as a refrigerant and solvent.

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