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How can you tell if a solution is saturated?

If the temperatures of solutions are increased, the solubilities of solutes increase, which means more solute can dissolve in a warmer solution versus one at room temperature. Substances have set solubilities in different solvents, depending on the conditions of temperature and pressure. The normal conditions of temperature and pressure are 25 degrees Celsius and one atmosphere. Several factors affect the solubility of a substance. Temperature, pressure, size of the solute and stirring of the solution all contribute to the amount of solute that can dissolve.

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What is the function of a flower?

Flowers are an important part of the reproductive system of plants. Each flower produces pollen, which is released through the anther part of the stamen. Some flowers produce pollen that is carried by the wind to other flowers so that fertilization takes place. Many flowers require a pollinator to carry the pollen. Common pollinators include hummingbirds, bees, wasps, ants, flies and beetles. In some parts of the world, small mammals and lizards also function as pollinators.\nThe particular color, pattern or scent of a flower attracts the appropriate pollinators. Pollinators feed on the nectar..

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What are the consequences of global warming?

Global warming causes extremes in temperatures. While observers might expect extreme highs, the process moves the jet stream from its normal location so that in the midst of global warming local areas often experience record breaking cold temperature. The overall warming increases glacial melt, affecting the height of the oceans and the acidity of the waters.\nThe environmental changes affect both plant and animal life. Temperature changes move the zones in which plants thrive, becoming too warm in some areas, while making other areas inhabitable where frost and freezing temperatures once kill..

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How is acid rain formed?

Humans are the main cause of acid rain, according to the EPA, because many different chemicals get released into the air as a result of burning fossil fuels, exhaust from cars and the use of aerosol cans. Natural rain is slightly acidic, but human activities make it worse. Acid rain can cause damage to crops, trees, rivers, animals and lakes.

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What are solid oxide fuel cells?

Oxygen is pumped through the anode, electrolyte and cathode to become negatively charged. Then, the oxygen ion reacts with the fuel to create electricity, steam and carbon dioxide. SOFCs convert as much as 60 percent of their chemical energy to electricity, whereas portable gas-powered generators operate at roughly 18 percent efficiency.\nDifferent varieties of hydrocarbon fuels can be used in SOFCs, including natural gas, biogas, diesel, unleaded gasoline, methane and even carbon monoxide. These fuel cells tolerate chemical impurities in fossil fuels such as ammonia and chloride contaminants...

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What is the function of the bronchioles?

When humans breathe, air travels from the mouth and nasal cavity to the larynx, or voice box, which feeds air into a central windpipe known as the trachea, according to the National Heart, Lung, and Blood Institute. The trachea branches off into right and left bronchial tubes, and each passageway is connected to multiple branches of bronchioles.\nBronchioles are divided into a three-tier hierarchy. Lobular bronchioles are directly attached to the bronchial tubes and branch off into tinier terminal bronchioles, notes About.com. Respiratory bronchioles extend from the terminal branch to the alve..

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When was tin discovered?

The first known use of pure tin was in 600 B.C. While most ancient tin ore was panned from rivers, underground tin mines existed in the Middle East as early as 2870 B.C. Tin's low melting point made this ancient mining possible; tin ore was softened by fires, then removed with stone tools.

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Is monocalcium phosphate dangerous?

Monocalcium phosphate is an inorganic phosphate. Although it is not dangerous for human consumption, the amount taken in by a person should not be more than 70 milligrams per kilogram of body weight. When mixed with sodium bicarbonate, this compound is used as a leavening agent in baking products. One advantage with using monocalcium phosphate as an ingredient in food products is that the right amount does not change the product's pH.

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Why does fluid build up in lungs?

The lungs contain 300 million air sacs, called alveoli. These tiny air sacs absorb oxygen when a person inhales and release carbon dioxide when a person exhales, according to the New Health Guide. When fluid fills the lungs, it becomes trapped in the alveoli and causes difficulties in breathing.\nNumerous health problems cause fluid in the lungs, including cardiac problems. The New Health Guide lists coronary artery disease, cardiomyopathy, heart valve issues and high blood pressure as common cardiac causes. When the heart fails to work properly, it affects the lungs. Coronary artery disease c..

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What is typically included in a life cycle diagram?

Different living things have different life cycles, so each type of organism requires its own life cycle chart. A tree's life cycle chart, for example, begins with a seed or nut which germinates, forming a seedling. The seedling then grows tall, eventually setting its own seed. The tree then dies, and the cycle starts again with a new seedling sprouting from one of the tree's seeds.\nLife cycle charts are not only useful for showing how living things develop, they can illustrate virtually any multi-step process, such as the birth and death of a star. The life cycle for a star similar..

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