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What causes urine to be a dark brown color?

Blood in the urine can also cause dark brown urine, claims WebMD. Medications that are used to treat infections of the urinary tract, such as nitrofurantoin, can also cause the urine to turn dark brown, as can antimicrobial drugs such as metronidazole and high blood pressure drugs such as methyldopa. Levodopa, a drug used to treat Parkinson's disease, is also implicated in the production of dark brown urine.\nDrugs that are used to combat malaria, such as primaquine and chloroquine, can also turn the urine dark brown, says the Mayo Clinic. The muscle relaxant methocarbamol can have the sa..

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What is the chemical composition of saliva?

Saliva is a frothy substance that is produced and secreted from the salivary glands. Referred to as “the mouth’s blood,” it is important for dental health and prevents tooth decay. Saliva lubricates the teeth, tongue and tissues of the mouth. A healthy person produces 0.75 to 1.5 liters of saliva per day, but the amount drops to almost zero while sleeping.

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Does crude oil harm the environment?

Crude oil is a naturally occurring liquid that consists of hydrocarbons and organic compounds, and it is typically found in underground reservoirs. There are four types of crude oil arranged in Classes A, B, C and D, according to Tox Town from the National Institutes of Health. Class A crude oils are called light, volatile oils because they have a low viscosity; these include jet fuel and gasoline. Class B crude oils are non-sticky, viscous oils; these include diesel fuel and light crude oil. Class C crude oils are highly viscous, sticky oils that pose significant danger to the health of wildl..

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What does the color aubergine look like?

The color aubergine is a common color for paint, clothing and other items. Depending on the product vendor, the color may be called eggplant or aubergine, but there should be no difference in the two colors.\nEggplant is commonly used in cooking and is a primary ingredient in dishes such as eggplant parmigiana, ratatouille and moussaka.

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Can mice distinguish color?

Humans and most mammals have three photo pigments in their eyes. The third photo pigment is what gives humans the ability to see vibrant colors. Mice only have two photo pigments in their eyes; therefore, without the third photo pigment, they cannot see the variety and vibrancy of colors like other mammals. Mice cannot see very well, but they have a great sense of hearing. They use their whiskers to help them feel their way around, especially at night when their eyes are practically useless.

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Why don't lipids and water mix?

A molecule starts to accumulate a charge when the atoms and electrons inside of it are distributed unevenly. A water molecule has a charge because the hydrogen atoms and electrons weigh down different sides of the molecule unevenly, attracting the molecule to other similarly uneven, weighted molecules. When water molecules come in close contact, they attract each other and will bond, forming a large mass. As a result, water molecules draw near each other and force out other nonpolar molecules, creating the effect of separation that is seen when oil and water come in close contact. This is the ..

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What is a complex circuit?

Complex circuits contain more than one source of electromotive force or pure voltage source. They cannot be solved by using series and parallel combinations.\nGustav Kirchhoff developed two laws that are used in solving complex circuits. Kirchhoff's first law states that the total current entering a node is equal to the total current exiting the node. His second law states that the total voltage in a closed loop is equal to the sum of all the voltage in the same loop. The first law is known as the conservation of charge, and the second is known as the conservation of energy.\nOhm's l..

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What is the difference between a hydrogen bomb vs. an atomic bomb?

An atomic bomb works by splitting the atomic nuclei of heavy elements to produce atoms of daughter elements along with a large quantity of energy. It is this energy that provides the atomic bomb with its devastating force. Nuclear or thermonuclear weapons, on the other hand, work by heating up atoms of a light element, typically hydrogen, to the point that collisions between them result in fusion into a single atom of helium. This reaction also releases vast quantities of energy, which is the source of the nuclear bomb's destructive potential. Nuclear bombs use standard, fission-type atom..

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Why didn't Mendeleev arrange the elements by their atomic numbers when he created the periodic table?

The Russian chemist, known as the father of the periodic table, saw that some of the elements appeared in the wrong place when arranged by their atomic weights. For example, he saw that a reactive non metal element would be followed by a highly reactive light metal and then be followed by a less reactive light metal. Mendeleev came to the conclusion that by following what were the then assumed atomic weights, the elements appeared in places where their properties did not match those of their neighbors.

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What is the molecular weight of HCl?

Hydrochloric acid is a colorless gas that is an important chemical compound in technology and industry. In its aqueous form, the gas is condensed into a liquid and has the same chemical formula. Both the liquid and gas forms of HCl consist of a hydrogen atom and a chlorine atom covalently bonded together via a single bond. The compound is polar due to its partial negative charge, and it is soluble in water and all polar solvents.

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