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Where can magnesium be found?

Magnesium can also be found in some foods and is an important part of a healthy diet. Most humans do not get the amount of magnesium they need from food. The best natural source of magnesium in the diet is green leafy vegetables.Outside of diet, magnesium is used in a number of applications. It is often combined with aluminum to make a strong metal alloy. Magnesium is a very light metal, the second lightest alkaline earth metal. The element normally forms ionic compounds, like magnesium hydroxide, which is more commonly known by the name milk of magnesia.Another common household item that cont..

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What forms from copper II nitrate and sodium hydroxide?

The combination of copper II nitrate and sodium hydroxide can also be referred to as a double displacement reaction. Reactions that are called double displacement reactions often include precipitation reactions, gas forming reactions and neutralization reactions. For example, sodium hydroxide is a strong base, and when it's added to copper II nitrate, the result is the precipitation of insoluble copper hydroxide or a double displacement reaction.

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What is an analogy for the cell membrane?

The cell membrane is supposed to be permeated by a few different materials. If the chemical makeup of a material is not what the membrane wants to allow through, then the membrane holds strong and refuses entry. This is just like a drawbridge or gate. The gatekeeper will only let a person through the wall or fence if he recognizes the person who wants to enter.

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How does a fulcrum work?

In a first-class lever, the location of the fulcrum is between the load and the resistance. A seesaw is a first-class lever. The weight of one person provides the force to lift the second. Moving the location of the fulcrum toward the heavier person helps to balance the force.\nThe load is between the fulcrum and the force in a second-class lever, as with a wheelbarrow. While wheelbarrows combine two simple machines, the wheel and lever, the axle of the wheel remains the fixed point for the lever. Increasing the length of the handles on the wheelbarrow increases the user's mechanical adva..

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In what time zone is Chattanooga, Tennessee?

Chattanooga lies at the transition between the ridge-and-valley portion of the Appalachian Mountains and the Cumberland Plateau. The city is surrounded by mountains and ridges. It is home to the world's first Coca-Cola bottling plant, according to Reference.com. Other notable businesses include Olan Mills Inc., Tennessee Valley Authority, DuPont and branch locations of AT&T and Cigna.\nChattanooga is also home to Chattanooga State Technical Community College and Tennessee Temple University. The University of Tennessee at Chattanooga boasts a student population of nearly 10,000 and is the ..

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How long does it take to go to the moon?

At its closest approach, which is known as perigree, the moon is only 225,623 miles from the Earth. By contrast, at apogee, which is when the moon is its farthest away from Earth, it is 252,088 miles off. Scientists say that the moon is moving away from Earth at a very slow rate — 1.5 inches per year.

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Why are summer days long and winter days short?

An ellipse is an oval shape rather than a circle. In the summertime in the northern hemisphere, the Earth is farther from the Sun because of the ellipse in its orbit, but the angle of the Earth's tilt points the hemisphere towards the Sun, making the days longer. The Sun's angle is also higher during the summer months than the winter months. In the winter, the Earth's orbit draws it closer to the Sun, but the Earth's axis tilts away from the sun, making the days shorter in the northern hemisphere. The summer solstice marks the first day of the summer and the longest day of ..

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Where is the adrenal gland located?

The adrenal gland has two parts: the cortex and the medulla. The medulla is the inner core of the adrenal gland and secretes adrenaline, or epinephrine, and norepinephrine into the bloodstream. These hormones help the body cope with sudden stresses.\nThe cortex, which is controlled by the pituitary gland, secretes steroids, such as cortisone and hydrocortisone. These steroids help balance the levels of salt and sugar in the bloodstream.

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What is barium chloride dihydrate?

Barium chloride is produced from the reaction of hydrochloric acid with barium hydroxide or barium carbonate. It is a toxic substance when ingested, and it causes a reddening of the skin and eyes when coming in contact with them. It is not combustible; however, it gives off toxic fumes in contact with fire. It is used in the manufacturing of pigments, fireworks and steel.

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What instrument measures humidity?

Hygrometers are commonly used to determine the humidity in areas where a specific humidity must be maintained. Some hygrometers operate by studying the contraction and expansion of hair when contacted by humidity. Some variations of hygrometers, such as psychrometers, operate by cooling the bulb of a thermometer through evaporation and determining the temperature of the air, while others function by measuring the resistance to an electric current, which changes with humidity. Chemical hygrometers determine humidity by absorbing moisture and measuring the weight of chemical materials after abso..

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