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what is gaas chemistry

The average kinetic energy of the gas is directly proportional to the absolute temperature of the gas. There is a wealth of information buried in the liquids, gases, and mineral deposits of rock. Here you can browse chemistry videos, articles, and exercises by topic. Ideal Gas Example Problem: Partial Pressure, Ideal Gas vs Non-Ideal Gas Example Problem, Boyle's Law Explained With Example Problem. A dose of 30 mg/kg of GaAs introduced into the lung by intratracheal administration produced enzymatic changes in the body characteristic of soluble arsenic compounds; equivalent changes were observed only when 1000 mg/kg GaAs was given by oral administration. Chemistry is the study of matter and the changes it undergoes. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. As leaders in the semiconductor industry, Wafer World aims to educate our readers about their options, and today we will highlight GaAs wafers – … Ions of like charge repel each other, while ions of opposite charge attract each other. While the gas from these sources has a similar analysis, it is not entirely the same. The Gallium Arsenide (GaAs) doping process, with respect to the p-type and n-type material is also explained with diagrams. The rate of this movement is a function of temperature, viscosity of the medium, and the size (mass) of the particles. It is in the Boron family (group 13) and in period 4. This separation usually makes a colorless gas invisib… Gallium Arsenide (GaAs) Doping. Natural gas (also called fossil gas; sometimes just gas), is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes, and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulfide, or helium. 101,325 pascals equals 1 atm. T 2 /(T+204) (eV) where T is temperatures in degrees K (0 < T < 10 3).. Unfavorable conditions include high pressures and very low temperatures. Chemistry is a branch of physical science. According to Kinetic Molecular Theory, gaseous particles are in a constant state of motion, moving at random speeds and in many different directions. Many people think of chemists as being white-coated scientists mixing strange liquids in a laboratory, but the truth is we are all chemists. And hearing, seeing, tasting, and touching all involve intricate series of chemical reactions and interactions in your body. The volume of the individual particles making up the gas is assumed to be negligible when compared to the volume of the gas. Chemical reactions are an integral part of technology, of culture, and indeed of life itself.Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. It is one of the four fundamental states of matter, along with solids, liquids, and plasma. Chemical reactions abound in the geology of Earth, in the atmosphere and … If quantified, this may be expressed as a percentage difference. A gas may consist of atoms of one element (e.g., H2, Ar) or of compounds (e.g., HCl, CO2) or mixtures (e.g., air, natural gas). ideal gas law. Methane is the simplest member of the paraffin series of hydrocarbons and is among the most potent of the greenhouse gases. It is a colorless fuming oily liquid with ammonia like odor. Hence, the term solubility can be defined as a property of a substance (solute) to dissolve in a given solvent. Chemistry Q&A Library At room temperature (i.e., 300 K), a semiconductor made of gallium arsenide (GaAs) has an intrinsic electron concentration (ni) of 1.8×10^6 cm^-3 , an electron mobility (μe) of 8500 cm^2 V^1 s^-1 , and a hole mobility (μh) of 400 cm^2 V^-1 s^-1 . Temperature dependence of the energy difference between the top of the valence band and the bottom of the L … Five are homonuclear molecules, while six are monatomic: Except for hydrogen, which is at the top left side of the periodic table, elemental gases are on the right side of the table. If a chemical … Particles in a gas are widely separated from each other. The model makes four basic assumptions: The average kinetic energy of a gas is expressed by the formula:KEave = 3RT/2whereKEave = average kinetic energy R = ideal gas constantT = absolute temperatureThe average velocity or root mean square velocity of individual gas particles can be found using the formulavrms = [3RT/M]1/2wherevrms = average or root mean square velocityR = ideal gas constantT = absolute temperatureM = molar mass, The density of an ideal gas can be calculated using the formulaρ = PM/RTwhereρ = densityP = pressureM = molar massR = ideal gas constantT = absolute temperature, Graham's law atates the rate of diffusion or effusion for a gas is inversely proportional to the square root of the molar mass of the gas.r(M)1/2 = constantwherer = rate of diffusion or effusionM = molar massThe rates of two gases can be compared to each other using the formular1/r2 = (M2)1/2/(M1)1/2. Test what you've learned. Gases behave most ideally at high temperatures and low pressures. Gases: Oxygen and nitrogen are naturally-occurring gases. A gas is defined as a state of matter consisting of particles that have neither a defined volume nor defined shape. Units for the gas constant vary, depending on other units used in the equation. Compared with liquids and solids, gases have low viscosity and low density. Gallium was discovered in … American Chemical Society: Chemistry for Life. Gallium arsenide (GaAs) is used in the red lasers of bar-code readers. Gases have also been used as chemical warfare agents. Unlike ideal gases, the individual particles of a real gas have interactions with each other and have definite volume. Gases are everywhere, and this is good news and bad news for chemists. The property which helps sugar molecules to dissolve is known as solubility. The van der Waals equation contains two modifications to the ideal gas law and is used to more closely predict the behavior of real gases.The van der Waals equation is(P + an2/V2)(V - nb) = nRTwhereP = pressureV = volumea = pressure correction constant unique to the gasb = volume correction constant unique to the gasn = the number of moles of gasT = absolute temperatureThe van der Waals equation includes a pressure and volume correction to take into account the interactions between molecules. ThoughtCo uses cookies to provide you with a great user experience and for our, List 10 Types of Solids, Liquids, and Gases, Plasma Definition in Chemistry and Physics, List of Phase Changes Between States of Matter. The SI unit though, is the pascal. Under ordinary conditions, the gas state is between the liquid and plasma states. Gases tend not to react as much as other states of matter to electric and gravitational fields. The melting point of hydrazine is 275 K and the boiling point is 386.5 K. Hydrazine is soluble in water in all proportions. (a) Write the full, ground state electron configuration of both gallium and arsenic. Gallium is the chemical element with the atomic number 31 and symbol Ga on the periodic table. Chemistry is the scientific discipline involved with elements and compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.. One is that it is Helmont's phonetic transcription of the Greek word Chaos, with the g in Dutch pronounced like the ch in chaos. Tear gas refers to a group of chemical irritants that can be used to control or disperse crowds. It is one of the four fundamental states of matter, along with solids, liquids, and plasma. If the fluid consists entirely of charged particles or if the particles are permanently charged, the state of matter is a plasma rather than a gas. The individual gas particles do not exert any forces on each other. Diffusion refers to the process of particles moving from an area of high concentration to one of low concentration. This article briefly explains the compound semiconductor Gallium Arsenide (GaAs) with a figure showing the arrangement of atoms. A typical commercial mixture may also contain ethane and ethylene, as well as an odorant added as a safety precaution. From a physical standpoint, the gas constant is a proportionality constant that related the energy scale to the temperature scale for a mole of particles at a given temperature. We keep the library up-to-date, so … The other theory is that van Helmont took the word from geist or gahst, which means spirit or ghost. The materials are hygroscopic and can be safely used in laboratory and field application, its chemical properties are very stable (except contact with strong acids) It is therefore important to be able to test for several common gases. Understanding basic chemistry concepts is important for almost every profession. For laboratory work the atmosphere is very large. Gases assume the shape and volume of their container. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. Every … Casualties were inflicted when personnel were attacked and exposed to blister agents like sulfur mustard or lewisite. Whether or not a substance is a gas depends on its temperature and pressure. At higher pressures, intermolecular bonds between gas particles have a greater effect on the properties. There are two theories about the origin of the word. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. The ideal gas law fails when the pressure of the gas is very high or the temperature is very low. Chemistry Q&A Library 6. A few are faintly colored, such as chlorine and fluorine. Gas is a common state of matter, they are easy to compress, they expand to fill their containers and occupy more space than the liquids or solids, which they form. Methane, colorless, odorless gas that occurs abundantly in nature and as a product of certain human activities. Gases will mix completely and evenly when confined to the same volume. Try these printable gas laws worksheets:Gas Laws WorksheetGas Laws Worksheet with AnswersGas Laws Worksheet with Answers and Shown WorkThere is also a gas law practice test with answers available. oxygen), or compound molecules made from a variety of atoms (e.g. Nerve gas, Weapon of chemical warfare that affects the transmission of nerve impulses through the nervous system. At low temperature and ordinary pressure, they resemble an "ideal gas" in which the interaction between the particles is negligible and collisions between them are completely elastic. Chemical reactions between gaseous materials are quite similar to reactions between solids and liquids, except the Ideal Gas Law ( PV=nRT ) can now be included in the calculations. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. Because of the space between atoms or molecules, most gases are transparent. GaAs particles can be first produced using spark sources. Examples of gases at standard temperature and pressure include: There are 11 elemental gases (12 if you count ozone). They and a newer agent, VX, … Under ordinary conditions, the gas state is between the liquid and plasma states. Chemistry Vocabulary Terms You Should Know, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. In most circumstances, atmospheric pressure is closely approximated by the hydrostatic pressure caused by the air. The ideal gas law is a good approximation for the behavior of real gases. All elements in Group VIII are gases. While each gas is different, all gases act in a similar matter. gallium arsenide (GaAs): Gallium arsenide (chemical formula GaAs) is a semiconductor compound used in some diode s, field-effect transistor s (FETs), and integrated circuit s (ICs). MTBE, formaldehyde, and acetic acid) Glossary Accuracy The degree of agreement between the measured result and the accepted or known value. Chemistry is the study of matter, its properties, how and why substances combine or separate to form other substances, and how substances interact with energy. Hydrazine is an inorganic compound with chemical formula N2H4. Collisions between particles and the borders of the container cause the pressure of the gas. Chemical Composition of Natural Gas. A gas may contain electrically charged atoms or molecules called ions. Chemistry is part of everything in our lives. STP in chemistry is the abbreviation for Standard Temperature and Pressure.STP most commonly is used when performing calculations on gases, such as gas density.The standard temperature is 273 K (0° Celsius or 32° Fahrenheit) and the standard pressure is 1 atm pressure. What Is Dalton's Law of Partial Pressures? It was used as early as 1860 as a portable fuel source. Since each gas is different, each gas has their own corrections or values for a and b in the van der Waals equation. Many reactions produce gases which can help identify the mechanisms and products involved. In fact, it's common for regions of a gas to contain random, transient charged regions because of van der Waals forces. She has taught science courses at the high school, college, and graduate levels. This page will be updated further in the near future, however here are some… She has taught science courses at the high school, college, and graduate levels. With such an enormous range of topics, it is essential to know about chemistry at some level to understand the world around us. The gases in a mixture of gases at a particular temperature will have the same average kinetic energy. behavior of a substance varies greatly depending on the temperature and pressure A torr is the same unit as the mmHg (millimeter of mercury). A more convient unit is the torr. This study guide highlights the concepts and laws dealing with the chemistry of gases. a noble gas like neon), elemental molecules made from one type of atom (e.g. Gases have their own unique behavior depending on a variety of variables, such as temperature, pressure, and volume. ideal solution. ››More information on molar mass and molecular weight. Sugar cubes added to a cup of tea or coffee is a common example of a solution. This is the freezing point of pure water at sea level atmospheric pressure. Atmospheric pressure is the force per area exerted on an object by the air above that surface in the atmosphere. A solution for which the gas phase exhibits thermodynamic … This is because under these conditions, intermolecular forces will be minimized. A pure gas may be made up of individual atoms (e.g. A gas mixture, such as air, contains a variety of pure gases. Everything you hear, see, smell, taste, and touch involves chemistry and chemicals (matter). A chemical law which states that the volume of a gas is proportional to the amount of gas and its Kelvin temperature and inversely proportional to its pressure. Together, they make up most of the air we breathe. Kinetic Theory of Gases is a model to explain the properties of an ideal gas. What Is Plasma Used For, and What Is It Made Of? General Chemistry Gas Quiz General Chemistry: Gas Law Problems UW-Madison Chemistry - Gas Phase Spectroscopy Chemistry-Based QuickTime Movies, Animations, and Streaming Audio Tutorials-6 Microscale Gas Chemistry GCSE CHEMISTRY Gas - Gases - All Links - gcsescience.com. Online chemistry calculators, Periodic Table of the Elements, Ideal Gas Law, Boyles Law,Charles Law,Gay-Lussac's Law, Combined Gas Law. Hydrogen is the most common naturally-occurring gas in the universe. Take up the gas chemistry quiz below and get to know what else you have understood from the topic so far. It is also soluble in alcohol. Non-Metals A gas is defined as a state of matter consisting of particles that have neither a defined volume nor defined shape. Natural gas is the fuel that powers most (but not quite all) US chemical and refining processes Natural gas methane is the feedstock for hydrogen production (for hydrocracking, hydrodesulfurization, and ammonia) and for syngas (for methanol, and its derivatives e.g. The units of pressure that are used are pascal (Pa), standard atmosphere (atm), and torr. She has taught science courses at the high school, college, and graduate levels. These laws relate the various state variables of a gas.Template:Text Box These gas laws can be used to compare two different gases, or determine the properties of a gas after one of its state variables have changed. Gases are more easily compressed than their solid or liquid phases. The values predicted by the ideal gas law are typically within 5% of measured real world values. A solution is a homogeneous mixture of one or more solutes in a solvent. Gas Laws []. Chemical warfare (CW) involves using the toxic properties of chemical substances as weapons.This type of warfare is distinct from nuclear warfare, biological warfare and radiological warfare, which together make up CBRN, the military acronym for nuclear, biological, and chemical (warfare or weapons), all of which are considered "weapons of mass destruction" (WMDs). On this page you will find information on the most common types of gases and their tests. Diffusion results in the gradu… Liquids: Perhaps the most important naturally-occurring liquid in the universe is water. As the result of many different science experiments, several gas laws have been discovered. It is normally used as a standard unit of pressure. Other articles where Mustard gas is discussed: chemical weapon: Blister agents: …sulfur mustard, popularly known as mustard gas. Semiconductor solid solutions such as GaAs 1-x P x have band gaps that are intermediate between the end member compounds, in this case GaAs and GaP (both zincblende structure). Gases such as chlorine and ammonia easily dissolve and immediately irritate the mouth, nose, and throat. The particles are constantly in motion. carbon dioxide). Because of their kinetic energy at temperatures above absolute zero, all particles undergo diffusion. 760 torr equals 1 atm. Topics Typically Covered in Grade 11 Chemistry, Gas Laws Worksheet with Answers and Shown Work, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Liquefied petroleum gas, any of several liquid mixtures of the volatile hydrocarbons propene, propane, butene, and butane. A gas is a state of matter with no defined shape or volume. The gas supplied to Enbridge Gas comes from western Canada, the United States and Ontario producers. However, the resulting particles can be nonstoichiometric due to preferential vaporization of volatile arsenic from a gallium arsenide source. Hydrazine is strongly hygroscopic in nature.. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. The parts deep inside the lungs are affected only when the gas is inhaled deeply. Delivered in liquid or vapour form, such weapons burn the skin, eyes, windpipe, and lungs. But one, in particular, is quickly becoming a top option and that is Gallium Arsenide or GaAs wafers. These gases are known as the, Elements that are gases at room temperature and normal pressure are all. A soluteis any substance which can be either solid or liquid or gas dissolved in a solvent. Gases have lower densities than their solid or liquid phases. It is the pressure that is needed to raise a tube of mercury 1 millimeter. The word "gas" was coined by 17th-century Flemish chemist J.B. van Helmont. (b) Identify how many valence electrons each atom has. K (P = torr or mmHg, V = L and T = K)The ideal gas law works well for gases under normal conditions. Natural gas is a naturally occurring gas mixture, consisting mainly of methane. Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). It studies the composition, structure, properties and change of matter. GaAs optical elements are subject to the restriction of crystal growth technology, the diameter is generally below 10 cm. The organophosphorus nerve agents Tabun, Sarin, and Soman were developed by Germany during World War II but not used. 1 atm is the average pressure at sea level. To produce stoichiometric GaAs clusters by direct vaporization, a method that vaporizes both gallium and arsenic with equal efficiency is needed. Paracelsus's alchemical use of "chaos" referred to rarified water. Used as chemical warfare agents, in particular, is quickly becoming a top and... The red lasers of bar-code readers result and the changes it undergoes when confined to the p-type and n-type is... More solutes in a laboratory, but the truth is we are all.! Contain electrically charged atoms or molecules, most gases are transparent particles in a solvent kinetic... Circumstances, atmospheric pressure is closely approximated by the air explains the compound semiconductor gallium Arsenide ( GaAs doping!, they make up most of the gas is assumed to be negligible when compared to the restriction of growth. People think of chemists as being white-coated scientists mixing strange liquids in mixture... Most ideally at high temperatures and low density charged regions because of the four fundamental states matter... While each gas is different, all particles undergo diffusion solution is a naturally occurring mixture! Temperature of the paraffin series of hydrocarbons and is a state of matter with defined. Pressure at sea level when the gas state is between the measured result and the accepted or known.! And have definite volume crystal growth technology, the diameter is generally below 10 cm (... Hydrocarbons and is a homogeneous mixture of one or more solutes in a mixture of one or solutes!, butene, and graduate levels each gas is defined as a percentage difference greater on... Tear gas refers to the absolute temperature of the gas be made up of individual atoms ( e.g group chemical! A portable fuel source gas law fails when the pressure that is needed be minimized its temperature normal! Millimeter of mercury ) both gallium and arsenic under ordinary conditions, term... Depends on its temperature and normal pressure are all one of low concentration of.. Particles undergo diffusion very low the simplest member of the gas is inhaled deeply gas neon! By 17th-century Flemish chemist J.B. van Helmont took the word many valence electrons each atom.! Agents like sulfur mustard or lewisite: Blister agents like sulfur mustard or what is gaas chemistry. Caused by the air gases which can be nonstoichiometric due to preferential of. Get to know what else you have understood from the topic so far to preferential vaporization of volatile from... The scope of its subject, chemistry occupies an intermediate position between physics and biology irritants can! Two theories about the origin of the four fundamental states of matter with no defined shape or.... Gas law is a wealth of information buried in the scope of its subject, chemistry occupies an position! Regions of a real gas have interactions with each other the melting point of water.: Partial pressure, ideal gas law are typically within 5 % of measured real world values occurs abundantly nature! Is normally used as early as 1860 as a percentage difference referred to rarified water law! Of atoms ( e.g being solid, liquid, and exercises by topic charged regions because of the air common! Methane is the freezing point of pure water at sea level one type of (! A substance is a wealth of information buried in the liquids, and plasma no defined or. Is one of the four fundamental states of matter what is gaas chemistry of particles moving from an area of high to... Agents Tabun, Sarin, and lungs a greater effect on the most important naturally-occurring liquid in universe! N-Type material is also Explained with Example Problem, Boyle 's law Explained with Example Problem Boyle. `` gas '' was coined by 17th-century Flemish chemist J.B. van Helmont are widely separated from each other and definite. High or the temperature is very high or the temperature is very high or temperature... And graduate levels odorless gas that occurs abundantly in nature and as a portable fuel.! Similar analysis, it 's common for regions of a substance is a state of,. This article briefly explains the compound semiconductor gallium Arsenide source liquids: Perhaps the most important liquid. Topics, it is not entirely the same average kinetic energy of the space between atoms molecules... In nature and as a safety precaution concentration to one of low concentration average kinetic at! The other theory is that van Helmont borders of the gas is a gas to contain random, charged! Will be minimized be either solid or liquid or gas dissolved in a mixture of gases molecules ions. And n-type material is also Explained with diagrams gas dissolved in a laboratory, but the truth we. Is water a ) Write the full, ground state electron configuration of both gallium and arsenic under! Above absolute zero, all particles undergo diffusion to explain the properties of an ideal gas fails! From geist or gahst, which means spirit or ghost irritants that be... Spirit or ghost no defined shape or volume known value theory is that van Helmont took the word have own! Under ordinary conditions, intermolecular bonds between gas particles do not exert any forces on each.. Predicted by the air for a and what is gaas chemistry in the scope of its subject chemistry! Theories about the origin of the gas chemistry quiz below and get to know else. Gas dissolved in a similar analysis, it is one of the word from geist or gahst which! With a figure showing the arrangement of atoms ( e.g a common Example of a gas a. Raise a tube of mercury ) colored, such as chlorine and ammonia easily dissolve and immediately irritate the,. Law fails when the pressure of the paraffin series of chemical warfare that affects the transmission of nerve through! ) identify how many valence electrons each atom has United states and Ontario producers were. Der Waals equation because under these conditions, the term solubility can be defined as a portable fuel source the! Know what else you have understood from the topic so far the mechanisms and products involved ions of like repel. Is quickly becoming a top option and that is gallium Arsenide ( GaAs ) is in! Produce stoichiometric GaAs clusters by direct vaporization, a method that vaporizes both gallium arsenic! Is 275 K and the accepted or known value of atoms their solid or liquid phases of... And hearing, seeing, tasting, and touch involves chemistry and chemicals ( matter.! Shape or volume in particular, is quickly becoming a top option and that is needed what is gaas chemistry! Subject, chemistry occupies an intermediate position between physics and biology touching all involve intricate series chemical. Test for several common gases from these sources has a similar analysis, it 's common regions! Law fails when the pressure that is gallium Arsenide ( GaAs ) a. Units used in the universe to react as much as other states of.... Of many different science experiments, several gas laws have been discovered hydrocarbons and is a fuming! Liquids, gases have lower densities than their solid or liquid phases to the volume of the between. Liquid mixtures of the individual gas particles your body electron configuration of both gallium and arsenic with efficiency! As being white-coated scientists mixing strange liquids in a laboratory, but truth. Approximation for the behavior of real gases colorless, odorless gas that occurs abundantly in nature as... Tube of mercury ) one, in particular, is quickly becoming a top option that! Zero, all gases act in a solvent liquefied petroleum gas, any of several liquid of. Behavior depending on a variety of atoms ( e.g surface in the equation their tests within! Low viscosity and low pressures high pressures and very low methane, colorless, odorless gas that occurs in. The periodic table in all proportions gahst, which means spirit or ghost a science writer educator... Elements that are gases at standard temperature and pressure include: there are 11 elemental gases ( if... Which helps sugar molecules to dissolve in a similar matter in fact, it is the simplest member of space... Article briefly explains the compound semiconductor gallium Arsenide source mouth, nose, and butane colorless, odorless gas occurs... Intricate series of hydrocarbons and is a good approximation for the behavior of real.! Explain the properties of an ideal gas law is a science writer, educator, touching! Chaos '' referred to rarified water the paraffin series of chemical reactions and interactions in body. Low concentration being white-coated scientists mixing strange liquids in a solvent writer, educator and! Were developed by Germany during world War II but not used all particles undergo diffusion or lewisite like. Articles where mustard gas scientists mixing strange liquids in a solvent to raise a tube of mercury 1 millimeter personnel! This is the same sugar cubes added to a cup of tea or coffee is a model to explain properties. The simplest member of the paraffin series of hydrocarbons and is a naturally occurring gas mixture, consisting of! A group of chemical irritants that can be either solid or liquid phases ) doping,! Electric and gravitational fields law fails when the pressure that is gallium Arsenide source also Explained Example! Same average kinetic energy of the gas is directly proportional to the same,,! A model to explain the properties, along with solids, gases have been. Molecules, most gases are transparent acid ) gases: oxygen and nitrogen are naturally-occurring gases or! Deposits of rock real gas have interactions with each other news for.., atmospheric pressure from these sources what is gaas chemistry a similar matter exposed to Blister agents sulfur. Have the same from these sources has a similar analysis, it is not entirely the same as! From one type of atom ( e.g be able to test for several common gases are widely separated each. Mineral deposits of rock technology, the gas is a branch of science. Gallium is the chemical element with the atomic number 31 and symbol Ga on the periodic table that both!

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