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What is the molar mass of iron (fe)?

Iron is the most common element found on Earth. It forms much of the Earth's outer crust and its inner core. In its relative abundance, iron exists in many different oxidation states. Each oxidation state of iron can form different compounds and bonds with other elements. The most common oxidation states of molecular iron include +2 and +3.

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What are all five outer planets?

The four outer planets consist of mainly gas, according to Northern Virginia Community College. These gas giants do not have a solid surface. Jupiter is the closest outer planet. The large red spot on Jupiter is actually a several hundred year old storm. Saturn is the sixth planet, and it is famous for the icy rings that surround it. Saturn has 52 moons, and the moon Titan even has its own atmosphere. Uranus contains methane gas, hydrogen and helium. Its enormous amount of ice gives it the name of ice giant. Less famously, Uranus has small rings around the planet, which consists of dust instea..

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What is meant by the dual wave particle nature of light?

If light were only composed of particles, firing single photons through a double slit would be expected to yield an imprint of the two slits on a receiving screen behind the slit. Instead, the light causes fringes, reminiscent of the constructive and destructive interference patterns of interacting waves. Rather than passing through one slit or the other, the light particles pass through both slits at the same time. When passing through the slits, a photon is at the first slit to a certain extent and at the second slit to a certain extent. It is impossible to say for certain which of the two s..

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How do you read a graduated cylinder?

Graduated cylinders are tubes made of glass or plastic with graduation either printed or etched on the sides of the tube. Graduated cylinders can be of different capacity, such as 10 milliliters or 100 milliliters, and graduated differently (in 1, 2 or 10 milliliter increments.Look at the edge of liquid in the graduated cylinderTo avoid parallax error, either lift the cylinder to your eye level or go down, so that you sight line coincides with the liquid edge. The parallax error occurs when an observer reads the liquid level at an angle.]Take the readingNote the numbered line below the surface..

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Why is astronomy important to our world today?

Beyond the practical and defense-oriented uses for astronomy, the field is important to the modern world for the same reason it was important to the ancient world: astronomical discoveries have the potential to shift the human consciousness. Examples of this process abound in history. Close observation of comets and the phases of Venus were instrumental in disproving the geocentric model that put Earth in an exalted place in the universe. Learning the true distances between stars and between galaxies helped teach humanity more about its place in the cosmos. Searching for signals from extraterr..

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Do free amino acids have peptide bonds?

Twenty different amino acids are used to synthesize proteins. Amino acids consist of a central alpha carbon atom, hydrogen atom, carboxyl group, amino group and a functional group that determines the type of amino acid. Kimball explains that during protein synthesis, a covalently linked peptide bond is formed between the carboxyl group of one amino acid and the amino group of the next sequential amino acid.

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What eats dead organisms?

The Old World group of vultures are are found in Asia, Europe and Africa, while the New World vultures are found in North and South America. The latter have adapted to eating carrion by having bald heads and necks that aren't fouled by carrion and an immune system powerful enough for them to remain healthy after eating decaying and possibly diseased flesh. In some cultures, vultures are even encouraged to eat human corpses.\nMaggots, the larvae of flies, not only feed on dead material but also have life cycle that is so precisely timed that forensic scientists can determine an organism&ap..

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How can you convert RGB color to Pantone?

Color can be converted from RGB to Pantone in Illustrator using the following steps: Open DocumentOpen the document and select the color that needs to be converted.Find the "Color Guide"Go to the "Window" tab and select the "Color Guide."Select the correct icon and choose "Color Books"Select the icon that appears in the bottom left corner of the screen. From there, scroll to "Color Books" and choose "Pantone solid coated."Choose the colorThe color that is to be converted should be indicated with a black arrow. Click on the color to convert it to Pantone.

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Where are combustion reactions used?

Organic combustion reactions involve an organic material, the fuel and oxygen. The products of the reaction are carbon dioxide and water, and the reaction releases energy in the form of heat or light. Inorganic combustion reactions do not always produce all the products but always involve oxygen.\nRapid combustion reactions often result in a fire. In addition to providing heat, they power internal combustion engines and provide the energy for thermobaric weapons. Combustion reactions that release a large amount of gas create excess pressure and loud noises in an explosion. However, some combus..

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What are some facts about bioenergy?

Bioenergy is any renewable energy or fuel obtained from biological sources such as wood, plants and animal waste. In 2012, biofuels accounted for 3.8 billion gallons of total transport fuel consumption. Ethanol is the most significant biofuel in the United States, accounting for 94 percent of biofuel consumption in 2012. Bioenergy can be used directly, as in wood burning, or indirectly, as in liquid ethanol for fuel.

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