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How flammable is boron?

Boron is found in a variety of forms in the natural world. Humans use boric acid, one of the most common naturally occurring forms of boron, as a pesticide. Other forms of boron include crystalline compounds. Boron is an important element involved in the splitting of prokaryotic cells. Additionally, plants require substantial amounts of boron for proper growth and health.\nBoron naturally occurs in human water and food sources, but it is not considered a dietary requirement. The human body usually contains less than one part per million of the substance. Ingesting more than 20 grams of boron m..

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What is the difference between extensive and intensive properties?

Because intensive properties do not depend on the amount of matter present, they are very useful when identifying chemical substances. Commonly referenced intensive properties include color, odor and luster. Malleability, which is the ability of a substance to be drawn into sheets, is also an intensive property, as is ductility, the ability of a substance to be drawn into wires. A substance's freezing point, its melting point, density,and hardness are all intensive properties. Generally, melting point and freezing point are stated as the temperature at which the phase change takes place a..

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What are some tsunamis that hit China?

Tsunamis are triggered by earthquakes, and China is a hotbed of seismic activity. While China is not known for tsunamis, the country is situated right at the edge of the Manila Trench. This trench stretches 800 miles under the South China Sea, all the way to the Philippines. The region is considered a high-risk zone for earthquakes., and seismic activity there could trigger a massive tsunami that would barrel straight toward the coast of China. Southeast China has four nuclear power plants near the coast that would likely be in the path of a tsunami originating from the Manila Trench, increasi..

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What is the strongest bone in the human body?

The femur is the largest of these bones, and the largest bone in the human body. It forms the thigh, while the tibia and fibula form the shin together. Finally, the patella is the protective bone that forms the kneecap. These bones are all connected by hinge joints, allowing the human leg to bend at the knee, hip and ankle, notes the BBC.

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What is the difference between maritime and continental climate?

The reason for this is that maritime climates are located near the coast of water sources like the sea. Water bodies tend to retain their heat during winter, which causes temperature near coastal areas to be warmer in winter. Continental climate are found away from bodies of water, so temperature extremes between the summer and winter seasons are more noticeable.Another difference in these two climate types is in the amount of precipitation. In maritime climates, precipitation amounts are greater than in continental climates because there is more moisture due to its location near a body of wat..

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What is the electron configuration of bromine?

A bromine atom has two electrons in its first energy level, eight electrons in its second, 18 electrons in its third and seven electrons in its fourth. It has seven valence electrons, as indicated by the last part of the configuration, 4s2p5. Bromine has an atomic number of 35 and is part of the halogen group of elements and is considered a diatomic non-metal. Bromine's chemical symbol is Br.

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What are the dangers of piling trash?

One of the most devastating effects of piling garbage is that is can easily lead to soil pollution. This means that the area affected may not be able to yield good plant growth, which will eventually lead to less vegetative coverage. Animals are likely to suffer since the area will not have sufficient amounts of plants for animals to eat.Another issue that may arise is that chemicals may spill from the garbage and find a way into nearby water bodies. Such water bodies may then become unfit for human and animal consumption. Equally, aquatic creatures may be adversely affected by chemicals slipp..

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What is poly-resin?

There is a range of polyester resins made from a variety of different glycols, acids and monomers. There are, however, two basic types used as laminates in the composites industry: orthophtalic polyester resins and isophthalic polyester resins. Because of their superior water-resistant properties, the isophthalic poly-resins are becoming popular in industries producing marine products. The majority of polyester resins are pale colored and viscous liquids in which a polyester has been dissolved in a monomer, such as styrene. To be used in molding, poly-resins require the use of ancillary produc..

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Should plastic bags be banned?

Several cities in the United States, including San Francisco and San Diego, and the entire Republic of Ireland have already banned plastic bags as of 2014. Instead of the disposable plastic bags, residents of these areas carry their groceries and other items in reusable bags typically made of cloth. Shoppers generally must purchase reusable bags and carry them to and from the store.

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Is benzoic acid soluble in water?

An acid base extraction is a particularly popular exercise in educational chemistry because it allows students to separate a mixture of organic compounds and characterize them from their melting points afterwards.Most neutral organic compounds are not soluble in water, but this is not the case when they are mixed with certain immiscible organic chemicals or liquids.An acid base extraction involves separating compounds by converting one component from a mixture into an ionic compound that quickly renders it soluble.Benzoic acid dissolves easily in ether or a sodium hydroxide solution, but not i..

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