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What causes flat fingernails?

Raynaud's disease causes some areas of the body to feel numb or cold during cool weather or stressful situations, says Mayo Clinic. The affected areas usually include fingers, toes, nose and ears, but this disease may affect other areas as well, such as the nipples and lips. The condition occurs when small arteries become narrow thus limiting the amount of blood supplied to certain areas.\nThis disease is more common in people who live in cooler climates. Symptoms include cold fingers and toes, numb or prickly feelings in the affected areas, and changes in skin color says Mayo Clinic. The..

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What is the reaction of N2O5 and H2O?

During the reaction, the atoms from one molecule of dinitrogen pentoxide and one molecule of H2O combine to form two molecules of nitric acid. Nitric acid can also be produced by combining water with nitric oxide or nitrogen dioxide. The balanced equation is found using a process called stoichiometry, which ensures that the same amount of matter is present both before and after the reaction and in accordance with the law for the conservation of mass.

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Where can you find a human muscular system chart?

The Healthline chart shows the muscular systems in both males and females in a format that can be rotated for a 360-degree view. Site visitors can find in-depth information about muscular tissue that includes skeletal muscle, cardiac muscles and smooth muscle.\nHealthline.com also features links to related symptoms such as lack of coordination, muscle weakness and impaired balance. Each symptom has a comprehensive list of possible causes with information about each disease or impairment.

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How fast does Jupiter spin?

Jupiter has an elliptical orbit, and it takes Jupiter 12 years to make a revolution around the sun. Jupiter is gigantic; in fact, more than 1,000 planets the size of Earth could fit inside it. It is best known for its great red spot, which is actually a spinning storm similar to a hurricane. The storm itself is 3.5 times the diameter of Earth. NASA launched the Juno spacecraft in 2011, which is estimated to arrive on Jupiter in 2016 with a goal of learning more about this mysterious planet.

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What is the chemical name for CCl4?

The molecule CCl4 is named according to the number of chlorine and carbon atoms present in it. Since there are four chlorine atoms present, the prefix "tetra" is used to indicate the precise number of chlorine atoms in the name "carbon tetrachloride." According to the IUPAC nomenclature rules, compounds that contain only one carbon with four single bonds are described as "methane." Therefore, according to IUPAC rules, CCl4 is called tetrachloromethane to indicate the number of carbon atoms in addition to the number of chlorine atoms.

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What three components make up a nucleotide?

A nucleotide is a basic structural unit of nucleic acids, such as DNA and RNA. The sugar molecule is either ribose or deoxyribose, and the bases are adenine, cytosine, guanine and thymine. These three components fit together in a double helix shape.Adenine and guanine are purine bases that have a double ring structure. Cytosine and thymine are pyrimidine bases that have a single ring structure. A purine base always pairs with a pyrimidine base. It follows that a thymine molecule only pairs with an adenine molecule and a guanine molecule only pairs with a cytosine molecule.The structure of the ..

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What are stratus clouds made of?

Clouds that look like fog that's above the ground are stratus clouds. In fact, when patches of fog lift into the sky, they become stratus clouds. According to NASA, stratus clouds resemble bed sheets because they are low to the ground and essentially "blanket" the atmosphere with a layer of cloud below 6,000 feet. These clouds form when air is lifted upward by a gentle current and subsequently falls below the dew point. They can also form when the weak current lifts air just high enough to initiate condensation.\nThough stratus clouds can bring precipitation, they are typically not the cl..

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What are the uses of titanium?

The SR-71 Blackbird was the first aircraft to use titanium extensively in its structure and skin. The intense speeds of which the plane is capable create so much aerodynamic friction that any other metal would melt out of the sky. Titanium is biocompatible, meaning the human body can handle it in large doses with no impact. The density is similar to bone, and bone adheres to it. It is used for ball-and-socket joint replacements, heart stents and dental implants. Titanium forms a hard protective oxide film upon contact with oxygen. This film gives the metal its shimmer and shine, making it an a..

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What is the normal pH balance in the human body?

Blood pH higher than 7.45 is alkaline and lower than 7.35 is acidic. Very small movements in pH levels significantly change the amount of acid in the blood, which interferes with normal bodily functions. Several factors can change pH levels such as disease, food, medications, kidney function and urinary tract infections. Kidney stones often form as a result of both high and low blood pH levels, states Healthline.

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What color is Venus?

Venus gets its color from its cloud cover, which is composed almost entirely of sulfur dioxide. The sulfur tints the clouds yellow and makes them opaque, so it's impossible to see the surface of Venus. The clouds also produce sulfuric rain, which further tints the atmosphere of Venus and stains the planet's surface yellow.

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