Silicon (Si) is the most common metalloid in the world. Silicon is found readily in the Earth’s crust where it is the second most abundant element after oxygen. Silicon is used in several industrial applications such as semiconductors and microchips.
Brass is a combination of zinc, and copper. The alloy metal is normally composed of sixty nine percent zinc, and thirty one percent copper. You can find more information here:
Iodine was added to table salt after it was discovered that allot of people in the United States were developing goiters because of a lack of iodine in their diets.
Ionic bonds are formed when an ion (an atom or molecule whose electrons outnumber or under number the amount of protons, giving it a negative or positive charge, respectively) with a negative charge (an anion) joins with an ion with…
Areas around the world where nickel can be found would be places such as France and Australia. Many stainless steel appliances we have in our houses today contain a small part of nickel.
Talc is a mineral or a natural rock that contains magnesium silicates. Talc is used in cosmetics, body powders and the paper and printing industry. Look here for more information:
Ethanol stored at room temperature is a colorless liquid with a density of 0.789 g/mL, which is equivalent to 0.789g/cubic-centimeter.
Nickel ores are found in many countries around the world, but the primary places for mining nickel are located in Brazil, Canada, Australia, China, Greece, Indonesia, Cuba, Dominican Republic, New Caledonia, Russia, South Africa and the Philippines, to name a…
A man named Joseph Priestly was given the credit for discovering oxygen. He made it by heating lead oxides. It was also discovered by Carl Wilhelm.
A chemical reaction is the process of changing one set of substances into another by the combination of two or more elements. The two types of chemical reactions are spontaneous, meaning they need no outside influence to occur, and non-spontaneous,…
Sucrose, the substance we know as table sugar, comes from sugar cane and sugar beets. After the sugar cane and sugar beets are harvested they are processed to remove the sugar. How sweet it is!
Chemical formula of Carbon Monoxide is CO. It contains one atom of carbon & one atom of oxygen. It is very poisonous gas. It is generated due to combustion of fuels.
Ionic Bond is type of chemical bond that exists between two ions of opposite polarity. It usually exists between a metal and a nonmetal such as in Salt (NaCl).
Well lets just say there aren’t any cobalt street dealers to worry about. Cobalt costs $200 per kilogram which in simplified terms equals just about $100 a pound! Look here for more information:
There are several elements of a poem. They are rhythm, meter, rhyme, alliteration, simile, metaphor, theme, symbolism, and conclusion. All of these are pertinent to a good poem.
Carbon makes up many common compound chemical elements. It is in diamonds and graphite, amoung many others. While carbon not as abundant in the Earth’s crust as other elements, it is number 4 on the list of most abundant elements…
Molarity refers to the number of moles per liter in a solution. It takes into account atomic mass, and it is the most common method of specifying concentration of a solution. Look here for more information:
Nitrogen is the most abundant element in the air. So if you want a 78% by volume concentration of nitrogen all you have to do is bottle some air. For more pure samples you can use fractional distillation or reverse…
Nitrogen happens to be in the nitrogen family. Nitrogen is one of the five elements within this family along with phosphorus, arsenic, bismuth and antimony.
Wind can be a very powerful thing. It is so powerful it can be made into energy, the motion of the wind can form heating and cooling of the earth, which forms solar energy.
Carbon is an element found in many different places like the stars, the atmosphere of planets as well as the sun. Carbon can react with air to form gasses or with water but only under force. For more information, look…
Ammonium is a cation of the chemical formula NH4+ and is formed using ammonia. Ammonium is a fairly strong conjugate acid and has many uses.
Silver is a large atom with an atomic mass of 107.87 amu. Silver is known as a transition metal and can be found on the periodic table with the symbol Ag. For more information, look here:
One molecule of pure water is made up of 2 hydrogen atoms and 1 oxygen atom. If a water sample is not pure or distilled there will be other things present in water molecules. What is present in the water…
Platinum isn’t just that necklace around your neck, or that watch on your wrist. The first reference to the discovery of plainum appears in writings of an Italian humanist in 1557. For more information see here:
Polonium is a chemical element with the symbol Po and the number 84. It is radioactive, and will vaporize if left in the room at normal temperatures. Look here for more information:
Neon is found in trace amounts in the air. It is a colorless inert gas which turns reddish-orange when used in neon lamps and discharge tubes.
Solutions in science are completely different from solutions in math. In science, a solution is basically a liquid substance used to perform experiments.
Iron has the symbol Fe on the periodic table, and is a member of Group 8. It has an atomic number of 26, and is also a transition metal. There are many other transition metals. For more information, look here:
Atomic theory is the theory of the nature of matter. The atomic theory states that matter is composed of units called atoms, and proves that matter is indeed made up of particles. Look here for more information:
Free radicals are atoms, ions or molecules with unpaired electrons. They have an open shell configuration. Free radicals are highly reactive. They have important roles in many chemical processes, including within the human body. They’ve even been implicated in the…
That would depend on what type of salt you are weighing and just how much salt you are weighing. A teaspoon of table salt weighs in at about six grams.
Atomic theory shows that matter can be broken down into atoms, and each atom had a different mass. John Dalton created the Atomic Table to organize these elements. You can find more information here:
The word metalloids kinda speaks for it self, it can be defined as elements which exhibit characteristics of bothe metals and nonmetals, hope this help you out.
Hydrogen means a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas. Its the simplest and lightest and most abundant element in the universe.
Water is a compound of Hydrogen & Oxygen. It includes two hydrogen atoms & one oxygen atom. It is very abundant on Earth & is must for our survival.
Titanium is used in steel as an alloying element to reduce the size of grain as a deoxidizer, and in stainless steel to reduce the carbon content.
Crude oil is obtained by drilling down into the ground to an oil well. The oil is then pumped out of the ground and put into barrels. The barrels of oil are then sent to a plant where it is…
A theoretical yield is the yield that something should provide according to the theory being used. This means that the actual yield cannot be measured, only estimated based on other known constants and variables.
Dmitri Mendeleev was a Russian inventor and chemist. He is credited of being the creator of the first version of the periodic table of elements.
The very first periodic table of elements was created by Antoine Lavoisier in the year of 1789. This person first created the table of elements by listing the first 33 chemical elements of the periodic table.
Iron is the most common metal in our society, used in automobiles, buildings, steel, and cookware. It is also an essential mineral for our bodies, for oxygen transport and metabolism. To find more information click here: science.jrank.org/pages/3689/Iron-How-we-use-iron.html
Oil and water are usually separated easily because of the difference in their density. A mixture of oil and water will settle over time, and the oil will float on top of the water because of its lower density. You…
Lipids are organic fats, oils, and waxes that are needed and used by the body. Lipids are formed by glycerol and three fatty acids, known as triglycerides.
Carbon is one of the basics of life. We could not exist without carbon. Carbon is in our very being. It’s encoded in our DNA. That’s how scientists use carbon to do carbon dating.
A chemical formula is a visual way of writing down the components of various chemical compounds (or chemical substances). In other words, the chemical formula is a way that one can visually see what makes up various chemicals.
There are four steps to solving stoichiometry problems in chemistry. 1) Find the balance of your equation, 2) change units of substance to moles, 3) find moles of desired substance using a mole ration and finally 4) convert these moles…
Most people know that silver is actually formed in nature, but how does the production of silver actually happen? Silver is valued as one of the precious metals. You can find more information here:
Calcium (Ca) is an Alkali Earth metal that costs 20 $/100g. This element was isolated for the first time by a man named Sir Humphry Davy in London 1808. Before that, the Romans, in the first century used a compound…
Air is only about twenty one percent Oxygen. Air also contains about seventy eight percent Nitrogen. There are tons of different uses for Oxygen.
Manganese dioxide is an inorganic compound that occurs naturally as the mineral pyrolusite. It is a black, insoluble solid with a density of 5.026 grams per cubic centimeters.
No one knows who discovered Silver since it has been around since ancient times. They believe it was used as far back as 4000 BC or that approximately that was the time man was able to separate silver from lead.
There are usually 7 neutrons in oxygen. I say usually because some atoms have different isotope versions of themselves or have bonded with another element or molecule that has changed it slightly. For more information see here:
Crystals have been known to mankind since ancient times. A Danish researcher, Nicolas Steno, first discovered that quartz crystals are made from the remains of formerly living things.
Barium sulfate is useful for many medical imaging tests, as a radiopaque agent. This means it shows up on the x-ray in white to be seen by the doctor. To find more information click here:
Everyone know that a gas is a sample of matter that conforms to what ever shape the container is. It also holds an acquires uniform density inside the container.
Platinum is most commonly used in making jewelry. Some more practical uses for this versatile metal are in electronics, glass, spark plugs, and fuel cells. You can find more information here:
Aluminum is the most abundant element on the Earth’s crust, but it is never found by itself in nature. The first methods for isolating aluminum involved electrolysis. Now aluminum can be obtained from clay. To find more information click here:
Today marbles are made out of glass. Marbles have been around since ancient Egyptian times, and some of the first ones were made out of clay.
Natural deposits of zinc are found in the earth’s crust. It can be mined from an open pit if it is close to the surface. About 75% of zinc is not close to the surface and is retrieved by underground…
William Ramsey and Morris Travers discovered neon in the atmosphere and named it after the Greek word neon which means ‘new one,’ as it was the new gas.
The price of platinum changes from moment to moment on the stock market, but as of September 8th, 2009, at 6:00 pm, it’s $1283.00. Platinum is a precious metal, and is used as a catalyst in chemical reactions. For more…
A peptide works by being absorbed into the bloodstream. It usually is formed when proteins are digested in the body. They can even act as natural pain relievers. There a more in-depth look here
40% of the worlds gold supply currently comes from South Africa, followed by the USA. Some scientists predict that up to a third of all the gold in the world could be in South Africa.
Atoms are gain and lost when an electron is bonding with another atom. This process forms an ion making the new form atom become a postitive or negative ion.
Aluminum is one of the most abundant metals to be found in the Earth’s crust and mined as ‘bauxite’ ore. Australia is the top producer of bauxite, followed by China, Brazil, Guinea and Jamaica.
Radium, a radioactive chemical element, was first discovered by Marie and Pierre Curie in 1898. It was found in the Czech Republic. It is considered a decay product of uranium. It is found the and around the Great Lakes area…
Sand is created by the gradual breaking down of not only tiny water animals but of larger rocks. Water erodes rocks and breaks them down while tiny shells of sea creatures mix to form the sandy beaches we enjoy.
Copper sulphate is a salt that can range from gray colored to bright blue. The color depends on whether it’s in anhydrous or pentahydrate form. It’s used as an herbicide or pesticide. Look here for more information:
Sodium is rarely used by itself because of its violent reaction to air and water. Sodium is used in baking soda and in your salt shaker at home. Sodium compounds are important for paper, glass and soap. Sodium hydroxide is…
The symbol for the element sodium is Na. Sodium has an atomic number of 11. Sodium can be found in many products that we use or consume, such as soaps, table salt and beef jerky.
A covalent compound is a compound in which two bonded atoms share their electrons rather than transfer them to one another. Covalent compounds are formed by the bonding of two non-metal elements to each other. For more information see here:
Chemical Reaction is the process in which two ore more elements are mixed to give new compound. It may be reverse too. New compound has different properties.
It is difficult to say when iron was discovered exactly as people have been aware of it since ancient times. Iron has played an instrumental role in the development of society over the ages. Look here for more information:
The discovery of Chlorine as we know it today dates back to 1774. It was discovered by a Swedish Chemist by the name of Carl Wilhelm Scheele. Look here for more information:
The number of neutrons is calculated as the atomic mass weight subtracted by the number of protons. The chemical element gold has 117 neutrons.
It is written that by electrolyzing lime in mercury. Some scientist were working in a labratory in the 1800’s and that is how it was discovered.
Europium was first discovered in France by Paul ‘mile Lecoq de Boisbaudran in 1890, but the credit usually goes to French chemist Eug’ne-Anatole Demar’ay. Demar’ay isolated europium in 1901.
Diesel is more expensive for a couple of reasons. Number one, is is harder and more expensive to create diesel. Second, it burns a lot of slower than gasoline so it actually last longer. That is the main reasons why…
The periodic table was invented in 1869 by Dimitri Mendeleev who was a Russian chemist. He created it because he was trying to find elements with similar properties.
Did you know crystals start growing by a process called nucleation. Nucleation can either start with the molecules themselves or with the help of some solid matter alreadyin the solution.
Neon was discovered in 1898 by a Scottish chemist named Sir William and an English chemist named Morris M.Travers. The largest use for neon is in signs used for advertising businesses. The atomic number for neon is 10.
Sulfur’s atomic mass is 32. The atomic mass of an atom is found by adding the total protons and neutrons in that atom. Sulfur has 16 protons. For more information see here:
The term atomic radius is also known as covalent radius and has different meanings. In physical chemistry, it is considered half the distance between a nuclei of two like atoms which are bonded. You can find more information here:
The density of helium is 0.1786 g/L. Helium is colorless, odorless and tasteless, but most importantly, it makes party balloons float up to the ceiling and that’s a lot of fun!
Neptunium is used in high-energy neutron detecting devices. It has also been under development as a weapon. Researchers have stated that neptunium makes almost as effective a weapon as uranium. Neptunium can also be irradiated to produce plutonium.
Substance is something that has mass, a defined composition or properties. A pure substance is one that cannot be broken down by any means. For example, salt water is not a ‘pure’ substance as it is made up of water…
Do you know what chloride is? Do you know where chloride comes from? How about what chloride is made of? Well, everyone knows that chloride is one of the elements that makes up salt. You can find more information here:
Making gas, is not as easy as you may believe. Gasoline is refined through three basic steps including separation, conversion, and the treatment process. For more information see here:
The names of natural gases are methane, propane, and butane. No, the kind that come out of a human body, known as farts, are not considered natural gas. Those just smell bad!
Zinc is located in the Earth’s crust. It is the 24th most abundant element contained there. The largest deposits are found in Australia, Canada and The United States. Although Zinc has been used since the 10 century B.C. the deposits…
On the periodic table of elements, potassium is represented by the symbol K. It was not a randomly assigned symbol. It comes from the word ‘kalium’ which is the Latin word for alkali.
The air or the atmosphere of the earth is made up of two elements.Air contains mostly nitrogen at 78%.Oxygen only makes up 21% and the 1% contains trace gases.
Toluene is used as a solvent in producing benzoic acid, benzaldehyde, TNT, and other organic compounds. It is also used in the fuel of air crafts and other high-octane fuels. You can find more information here:
Argon is a gas so it is found in the air. It makes up about 1% of the Earth’s atmosphere. It is sometimes used in lighting, and is very important in the metal industry.
A nickel is worth one twentieth of a dollar. It certainly isn’t worth what it used to be. Why back when I was a boy I could buy a soda pop for a nickel.
Potassium has a melting point of 146.08 degrees Fahrenheit or 63.38 degrees Celsius. Potassium is represented by the symbol K and has an atomic number of 19.
Pyrite is a combination of iron and sulfur. It is found in sedementary and igneous rock areas. It is found all over the world but mostly found in United States.
Nobody knows who was the first person to find iron. This is because iron has been used by mankind since before written records were kept. Look here for more information:
Carbonation is the process of adding bubbles of carbon dioxide to a liquid. These bubbles are introduce under great pressure so that as long as they stay pressurized they remain in solution. All you have to do to change this…
Aluminum is actually fairly reactive in comparison to other elements. The element of aluminum tends to react with acis and bases alike. It also reacts highly with oxygen and evidence of this is shown in the rust that occurs when…
We do not know who first discovered copper but it was in the middle east about 9000 BC in the middle East. Copper is created in high sulfur areas near volcanos. For more information, look here:
Gases are the grouping of nature in a state that bounces around until it fills its three dimensional container. Unlike solids that hold there shape and liquids that fill up their containers from the bottom, this three dimensional fill allows…
Physical properties are observable descriptions on things. They can be measured or counted without affecting the components of the substance. For more information, look here:
Chlorine bears the atomic number 17. On the periodic table of elements the atomic number of an element represents the number of protons in each atom. For more information see here:
Oxygen in the air we breath is free of charge! If you need a tank of oxygen, well the prices vary depending on your location and needs. Contact your local medical supply store.
Glucose is a simple sugar (a monosaccharide) that is formed by six carbon atoms twelve hydrogen atoms, and six oxygen atoms. Glucose is also a grape sugar, blood sugar or corn sugar & is a very important carbohydrate in biology.
There are actual rocks made from phosphate. This is where phosphorus is taken from. Phosphorus comes from fresh water in multiple ways. For more information, look here:
Boron exists in solid state at NTP. It is a metalloid so it looks just like metal. But it is not much shiny as metals. It looks like wet rocks. Look here for more information:
Most people know sodium acetate, but few people know it by it’s other name, which is, sodium ethanoate. But whatever we call it, sodium acetate is sodium salt. You can find more information here:
There are several different types of crude oils including paraffin based and mixed based crude oils. Paraffin based crude oils become solid at room temperature.
Aluminum was discovered by H.C. Oersted in 1825. It is the most common metallic element in the earths crust. It has a pretty low melting point and is a soft metal.
Gold was first discovered in the United States in 1848. gold has been around for many years before it was found in the U.S. It was very known to Ancient Egypt somewhere around 1539 to 1075 BC. It could have…
An element is a pure, basic substance that is made up of only one type of atom. It can’t be broken down any further. For example, hydrogen dioxide is not an element because it can be broken down further into…
The boiling point of oxygen is 90.2 Kelvin, -182.95 degrees Celsius, or -297.31 degrees Fahrenheit. The freezing point of oxygen is 54.8 Kelvin, -218.35 degrees Celsius, or -361.03 degrees Fahrenheit. The melting point of oxygen is the same as the…
Xenon is a a chemical element classified under the noble gases. It’s atomic number is fifty four. Xenon is a heavy colorless gas and also appears in the Earth’s atmosphere. Look here for more information:
The boiling point of saltwater will depend on the ratio of the salt to water that you are trying to boil. It will also depend on water elevation you are at. Water boils at 100 degrees C at sea level,…
Talc can be found throughout western Australia and the Middle East, formed in the earth from minerals. You can also find pure talc in the European Alps and the Himalayas. You can find more information here:
Sulfur is made of a number of elements that are dispersed through out volcanoes and hot springs. Some of the the sources that sulfur is made up of is iron pyrites, galena, gypsom, epsom salt and other elements.
Hydrogen can be used for jet and rocket fuel, and in refinement of coal-based fuel. Hydrogen peroxide, which is a solution of hydrogen, has a multitude of home uses.
As of July 16, 2009, the price of gold is currently trading at USD936.80 an ounce, up by 1.55 or 17% from yesterdays close. The high was USD938.30 and the low was USD934.85.
The most important use for oxygen is life. All living things, with the exception of a few types of bacteria, need oxygen. It also has medical and industrial uses as well as being used in explosives. You can find more…
Ores are types of rocks that contain minerals, like metals or gemstones, that can be mined and refined for use. Ores are formed by a variety of geological processes, referred to as ore genesis. Look here for more information:
The chemical equation for water is twoo molecules of hydrogen gas plus one molecule of oxygen gas yields one water molecule. Water is made by the joining of two gas molecules, one being hydrogen and the other being oxygen joining…
Learning about exactly what is a pure substance can be an educational and fun experience. A pure substance can be defined as a form of matter that has both clear properties and composition. You can find more information here:
The oldest iron artifacts come from the region that is now modern day India. Ranging from 1800 to 1200 B.C. the kingdoms of that area were the first to have such technology.
Iodine can be be purchased at a drugstore, grocery store, and some convenience stores. You can buy a one ounce bottle at CVS for $2.49 at CVS.
The price of Kerosene depends on where you live in the world. In the United States the price of Kerosene can range from $2.49 up to $3.50 per gallon. Some places you may even be able to get it cheaper.You…
The atomic number of an atom is representative of the number of protons within the atom. By knowing the number of protons in the atom we can determine the number of electrons.
Silver can be used in Silverware, coins, jewelry, dental fillings, electrical contact and silver paints. Silver is considered a precious metal and is harder than gold but softer than copper.
Zirconium which is commonly used in nuclear reactors because it doesn’t like to absorb neutrons, costs about $150 for just one kilogram. I wonder how much my local nuke plant spent on zirconium alone?
The element iron was first found and used by humans living in and around ancient Anatolia, now known as Turkey. The Lydians of ancient Anatolia were the first culture to begin minting coins, because doing so spared them the trouble…
Gold is a natural element, it is alot heavier than lithium. In most cases gold has been found to be created in stars. Gold is one of the most wonderful natural elements ever to be created.
Ice is less dense than water because when water freezes into ice, it expands to create a solid bond. When ice expands, it becomes less dense.
That atomic mass of chlorine is 35.453. Chlorine is represented by the symbol Cl on the periodic table. It has an atomic number of 17 and is classified as a halogen. For more information, look here:
The chemical element lawrencium was discovered at the Berkley Radiation Laboratory in 1961. It was discovered by Almon Larsh, Albert Ghiorso, Torbjorn Sikkeland, and Robert M. Latimer.
The atomic number represents the number of protons in an atom. By knowing the number of protons in an atom you can calculate the number of electrons. They are normally the same.
There are three types of chemical bonds that can be used in science. There are ionic bonds, covalent and polar covalent bonds, and hydrogen bonds. Look here for more information:
If you are getting ready for a chemistry test than you should know that wet chemistry is a term that is used. Wet chemistry is also know as bench chemistry. For more information, look here:
There are several different methods to extract coal from the earth. Among these, the most popular ones are, surface mining and underground mining. Surface mining is done when the coal is less than 180 feet beneath the surface, and underground…
A quorum is the number of members required for the body to conduct the business for the group in question. A quorum typically represents the majority of the members however the group can determine any number to be their quorum.
All elements are made of atoms, or rather the atom is the smallest unit of an element. Each atom consists of protons, neutrons, and electrons.
Each element is organized by atomic number and mass. It is done this way to keep from having to do multiple listings of a particular element.
Carbon has been around for quite sometime now. It dates back in prehistory to as 2500 BCE in China. In 1722, Rene Reaumur demonstrated carbons ability. For more information see here:
Your bohr diagram is basically a model of how an element is made. The diagram includes the nucleus and its surrounding electrons and protons. You can increase it in complexity by adding additional elements. You can find more information here:
Zinc is mined out of the ground and is one of the most common elements found in the earth’s crust. It is commonly found with other metals and alloys such as copper and brass. About 95% of the zinc that…
Magnesium has 12 neutrons. Magnesium is a chemical element with the symbol Mg and the atomic number 12. It’s the 8th most abundant element in the Earth’s crust and the 9th in the Universe as a whole.
A synthesis reaction is when chemical reactions are caused on purpose. Usually used in manufacturing and in laboratories for testing purposes.
The price of gold per ounce varies on a daily basis. As of January 17, 2010 the price of gold per ounce is $1131.25. For current gold prices check the stock market daily.
The physical properties of an item or substance, is what you can see, touch, or feel. Look at the outside of the object. Is it round? Is it pointy, thick, thin? What color is it? These are all physical properties.