Facts About the Building Blocks of the Universe, atom - Children's Encyclopedia (Ages 8-11), atom - Student Encyclopedia (Ages 11 and up). Class 1 Division 1 (1.1). Exploding Bomb:Explosives, including organic peroxides andhighly unstable material at risk of exploding even without exposure to air (self-reactives). How would you give the nuclear symbol for the isotope of gallium, Ga, that contains 40 neutrons per atom? [10], Planetary names and symbols for the metals the seven planets and seven metals known since Classical times in Europe and the Mideast was ubiquitous in alchemy. A convenient unit of length for measuring atomic sizes is the angstrom, defined as 1010 meters. Hazardous signs and symbols. 10 terms. Should the accident involve fire of an explosive-laden facility, a tractor trailer, a cargo truck, or a rail car of unknown explosive contents, minimum withdrawal will be mile for a facility, tractor trailer, or cargo truck and one mile for a rail car. Environmental Hazard: Chemicals toxic toaquatic wildlife. Verbally and numerically, they are referred to as follows: Class I Division 1 (II); Class I Division 2 (1.2); Class 1 Division 3 (1.3); and Class 1 Division i (It). Round Sign with red border, blue background and a red figure in protective clothing. The smooth, matte finish allows for easy cleaning. Color-coded bullet tips are used to categorize and identify various types of military ammunition. What does the whole number in the upper left corner of the atomic symbol mean? Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. What do the numbers 1-9 on a hazardous materials list mean? Isotopes are atoms of the same element that differ in the number of neutrons in their atomic nuclei. 2 4 O atoms. The chemical symbol for carbon is #"C"#. If a particular AE presents a fire and chemical hazard, both sign types should be displayed . By this it is meant that a comprehensive list of current systematic symbols (in the uAtom form) is not included in the list and can instead be found in the Isotope index chart. The cookie is used to store the user consent for the cookies in the category "Other. The behaviour of an atom is strongly influenced by these orbital properties, and its chemical properties are determined by orbital groupings known as shells. The ability to recognize and identify the types of munitions and their hazards may save your life should you be called for mutual aid to a military installation. Mercury is also sometimes said to represent the passive female principle, as well as wetness and cold. inequality. The hazard targeted by this sign is the materials water-reactive nature. All rights reserved. For some elements, this is because the material was known in ancient times, while for others, the name is a more recent invention. The following is a list of symbols and names formerly used or suggested for elements, including symbols for placeholder names and names given by discredited claimants for discovery. Author: Know. They can be created only with the addition of enormous amounts of energy, however, and are very short-lived. (When the white form of phosphorus oxidizes, it glows green.) Exclamation Mark: An immediate skin, eye or respiratory tract irritant, or narcotic. The ancient Greek physician Hippocrates connected each to one of the four humours of the human body, while Aristotle connected each to a principle of heat/cold and dryness/moisture. In addition to pictograms,labels are required to include asignal word(danger or warning), a brief hazard statement and a precautionary statement outlining ways to prevent exposure. The symbol has a blue background with a white rim and figure. 0.30" Carbine and 0.45' ACP - red tip for tracer. Salt represents the body, as well as physical matter in general, crystallization, and condensation. The air symbol in alchemy can also represent a life-giving force, and it is associated with the colors white and blue. Silvers alchemy symbol looks like a crescent moon, the same way golds symbol looks like a small sun. However, the blast hazard is not as severe, but fragmentation is an added problem. What is the nuclide symbol and nuclide name described by the following particle: 92 protons and 146 neutrons? Alchemy symbols sometimes contain hints of the qualities the element was thought to have, as well as the history of the element. Depending on the chemical, it may be appropriate to wear gloves, eye protection, a respirator, or a full hazmat suit. Show More. A chemical element is defined as a particular type of atom, which can be identified by the amount of protons the element holds in its nucleus. Symbols The four bars are color coded, using the modern color bar symbols with blue indicating the level of health hazard, red for flammability, orange for a physical hazard, and white for Personal Protection. Thenew label system is referred to as the Global Harmonised System of Classification and Labelling of Chemicals a bit of a mouthful, which is often shortened to GHS, and which aims to standardised the symbols used worldwide to avoid regional differences. Material is low-density with good strength and durability. This sign is best known by the adage Red is dead.. How do we find the number of neutrons in the #""^31P# isotope? We can determine the number of neutrons as #14-6=8# neutrons. 2. e) #48-22=26#. A Comprehensive Guide. Was actually, the "eighth metal" was given the symbol for the Earth, which was recognized as a planet by that time, symbol invented for the new planet Uranus, planetary metal for the Sun; from the 16th century, From actinium and B. Placeholder name given at one time to, From actinium and C. Placeholder name given at one time to, From radium and B. Placeholder name given at one time to, From radium and C. Placeholder name given at one time to, From radium and D. Placeholder name given at one time to, From radium and E. Placeholder name given at one time to, From radium and F. Placeholder name given at one time to, From thorium and B. Placeholder name given at one time to, From thorium and C. Placeholder name given at one time to, R: In organic chemistry contexts, an unspecified "R" is often understood to be an. Chemical formula can be used in chemical equations. This is because, as a metalloid, arsenic is capable of transforming its physical appearance (a metallic-gray solid or a yellow crystalline solid), the same way a cygnet transforms into a swan. Material is low-density with good strength and durability. What is the proper atomic symbol, including atomic and mass numbers, for an iron atom with 29 neutrons? Aristotle labeled Earth as cold and dry. These isotopes can be . The Chemical Warfare Service was established on 28 June 1918, combining activities which until then had been dispersed among five separate agencies of Government. Scerri, E.R. Now write the isotopic notation for carbon-14. These munitions were stored and stockpiled at different locations, awaiting transport overseas. For accidents involving fire of an explosiveladen tractor trailer, cargo truck, or rail car of known content or quantity of a fire symbol 1 material, the minimum distance is not less than 1,250 feet for nonfragmenting munitions. It does not store any personal data. What is the nuclear notation for a silicon atom that has #15# neutrons? How many neutrons does isotope sodium-20 have? *Avoid material contact with strong acids, bases, and oxidizers. HC/D, FIRE SYMBOLS, AND COMPATIBILITY GROUPS. 262 Alexander Street This category contains agents designed to harass such as riot-control agents (tear gas). What does the number 84 in the name krypton-84 represent? a) titanium-48 What is the isotope symbol for an atom that contain 82 protons and 125 neutrons? Propellants for munitions are covered under F/S 3 and are placarded with the corresponding DOT placard. Similar to F/S 1, F/S 2 materials become more unstable when exposed to fire for long periods of time. Ammo Handler. Fire hazard #2 identifies a substance with a flashpoint below 200 degrees F. To answer the question fully, I would need to know what the entire sign looks like. The GHS system, part of OSHA's Hazard Communication Standard (HCS), consists of nine symbols, or pictograms, providing recognition of the hazards associated with certain substances. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Sodium has 11 protons and 12 neutrons. The protons are massive, positively charged particles, whereas the neutrons have no charge and are slightly more massive than the protons. You can see the standard female sign within its symbol. These . You'll see dangerous when wet, an image of a flame and the number 4 on these placards. All across America, military munitions were being transported from one defense base to another. The position of the letters and numbers provides quite a bit of information about a container of ammo. A chemical symbol represents what of an element? Each pictogram covers a specific type of hazard and is designed to be immediately recognizable to anyone handling hazardous material. Atomic symbols normally consist of one or two Our experts can answer your tough homework and study questions. There is only one inner pack within an outer pack. Alchemy element symbols have been around for centuries, and people are often interested in them because they contain some of the mystique the field of alchemy does. However, a slightly different color-coding system is also seen on the joints between the primer and . What ammo can be stored together. The atomic symbol represents a code to identify an specific element in the Periodic Table of Elements. Reflective Plastic-Lite has a service temperature range of 0 to 160F and is UV resistant for 5-7 years. It is in the same proportion to the atom as a marble is to a football field. Hippocrates associated air with blood. General chemical storage. Its characteristics are total destruction with sonic shock waves. Fire. OSHA has adopted the use of GHS starting May 22, 2012. Magnetic labels stick to most metal surfaces, such as on trucks or car doors. For example, the fire alchemy symbol looks like an upward-point triangle, while the alchemy earth symbol appears as a downward-pointing triangle bisected by a horizontal line. of neutrons at its nucleus. This cookie is set by GDPR Cookie Consent plugin. 4 What does this fire symbol 3 represent? Previously, they looked fairly similar, but were set on orange squares, instead of the diamonds now employed. A. Sulfurs symbol is typically a triangle atop a Greek cross (seen above), but it can also be represented by a Cross of Loraine atop an ouroboros/infinity symbol. Hazard pictographs are another type of symbols used in chemistry. Fire symbol 1 represents a mass detonation hazard. In alchemy, arsenic is often represented by a swan or swans. AMMO-45 Exam. Investigate varying electron configurations in electron shells around an atom's nucleus. Is it an anion or cation. A chemical symbol is a notation of one or two letters representing a chemical element. What is the isotope notation for carbon-14? and 24-in. Medieval Arab alchemist Jabir ibn Hayyan was one of the first to connect the four elements to alchemy, but the classical elements were well-studied in ancient Greece before that. The four bars are color coded, using the modern color bar symbols with blue indicating the level of health hazard, red for flammability, orange for a physical hazard, and white for Personal Protection. Answer (1 of 83): Sorry for the big unorganized & somewhat "copy paste" answer from quota posts (with names mentioned & wikipedia. d) Number of protons Examples - 7.62mm, 5.56mm, 45 cal, and 9mm ammunition. Which element has an atomic number of 12? Its symbol looks like an 8 that is open at the top. There are six uses of ammunition out of which one is illuminate; The military uses ammo such as flares to illuminate or light up an area; The general purpose of illumination is to provide additional light for friendly forces to conduct operations during periods of darkness and to restrict and/or make more hazardous the movement of enemy forces. They, therefore, will not be dealt with in this section. 12"x12" to 24"x24". Example 2. Rubber base is embedded with magnetic particles. Plastic-Lite has a service temperature range of 0 to 160F and is UV resistant for 3-5 years. Ammunition and explosives are separated into fire divisions based on the danger they present to firefighters. These symbols and colors are recognized globally. Since the beginning of alchemy, alchemists have used symbols to represent different elements. Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. Current symbol is. The mass of an atom consists of the mass of the nucleus plus that of the electrons. Following this overview is a historical survey of the most influential concepts about the atom that have been formulated through the centuries. This diamond includes four sections with different colors that bear their own meanings: blue means health, red means flammability, yellow means instability, and white is for special hazards. A research article indicates that researchers have used an isotope #"^3H# ti trace a certain metabolic process. (Self-contained breathing apparatus must be worn, and firefighting protective clothing and equipment may be worn.) Placarding requirements for explosiveladen facilities are outlined in the Department of Defense Directive (DODD) 6055.9 and the DOD Ammunition and Explosive Safety Standards outlined in DOD Standard 6055.9, and they agree with Occupational Safety and Health Administration (OSHA) Standard 1910.109. What ACT target score should you be aiming for? Earlier symbols for chemical elements stem from classical Latin and Greek vocabulary. She has taught English and biology in several countries. Many of these symbols were designated during the early years of radiochemistry, and several isotopes (namely those in the decay chains of actinium, radium, and thorium) bear placeholder names using the early naming system devised by Ernest Rutherford.[16]. Chemical munition symbols use a combination of colors and figures to relay information. Flame: Flammable materialsor substances liable to self ignitewhen exposed to water or air (pyrophoric), or which emit flammable gas. High gloss overlaminate bonds to printed image. Most matter consists of an agglomeration of molecules, which can be separated relatively easily. Olive drab indicates the ammo contains explosives. What does the element symbol on the periodic table indicate? 6 mil thick, laminated vinyl (Dura Vinyl) for flexibility. What is the isotope notation for lithium? Airs symbol is an upward triangle bisected by a horizontal line, and you might notice it is the Earth symbol, inverted. Fill in the blank in each of the following nuclear equations. Protective clothing is referred to as sets. Sets 1, 2, and 3 are explained as they are encountered. Get access to this video and our entire Q&A library. Military Fire Division Symbols: Fire Division 1 or 5. Effectively communicate that a protective mask is required to prevent inhaling smoke from incendiary mixtures. Now write the isotopic notation for carbon-14. Which chemical element has the symbol As? Plastic-Lite is made of a 125 mil expanded PVC material. STP Occurrence Description 1 Hydrogen H 1 2 s Gas Primordials . Updates? If it is the latter, you must fully identify the isotope in superscript/subscript notation? What is the symbol for an atom containing 20 protons and 22 neutrons? In addition to the letters for the element itself, additional details may be added to the symbol as superscripts or subscripts a particular isotope, ionization, or oxidation state, or other atomic detail. The graphic in this article is licensed under aCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. . Learn what atomic number, mass number and atomic mass represent. UNDERSTANDING DEPARTMENT OF DEFENSE FIRE SYMBOLS. It provides some protection against direct contact with liquid agents; however, protection time is only a few minutes after contact occurs. In spite of the small size of the nucleus, virtually all the mass of the atom is concentrated there. These symbols are frequently encountered in the lab and also on some household products and whilst some are self-explanatory, others can require a little more in the way of explanation, which is what this graphic aims to do. What ammo can be used for training. #""_6^14"C"# We can determine the number of neutrons as #14-6=8# neutrons. Salt is often impure when first collected, but through chemical processes it can be dissolved and purified, which some alchemists compared to purification processes the human body can undergo. What is the symbol for the ion with 19 protons and 18 electrons? Corrosion: Materials causingskin corrosion/burns oreye damage on contact,or thatare corrosive to metals. Example: 1305-01-534-2702. The nucleus is the positively charged centre of an atom and contains most of its mass. Frequently, they are referred to as fire symbol (F/S) 1. Size: Weight: . Multiple Choice A Correct 00:01:19 2022-06-15T15:09:03 x13_01_01_92663 What does this fire symbol represent? Round DOD Firefighting Personnel Safety Symbol: Wear Breathing Apparatus Military Hazard(DOT-2220), Visitor No. Product Description. Because magnesium cant be extinguished easily once it has been ignited, it represented eternity to alchemists. For example, Pb is the symbol for lead ( plumbum in Latin); Hg is the symbol for mercury ( hydrargyrum in Greek); and He is the . (80438) Choose from Red PPE - Highly Toxic Chemical Hazard (Set 1), Yellow PPE - Harassing Agents (Set 2), and White PPE - White Phosphorous Munitions (Set 3), Wear Breathing Apparatus and Apply No Water Signs. In this guide well give a background on alchemy and alchemy symbols, then well cover every major alchemy symbol, including what it stood for, the properties it was associated with, and any interesting facts that go along with the alchemy symbols and meanings. Aristotle labeled water as cold and wet, and Hippocrates connected it to the body humor phlegm. Chlorine has two principle isotopes, Cl-35 and Cl-37. 3 What type of hazard is involved when a Class 1 Division 2 fire symbol is displayed? (AMMO-45) INTRODUCTION TO AMMUNITION (Cert) Exam Questions and Answers. 8.Know Your Hazard Symbols (Pictograms) - Princeton EHS. What is the atomic number of uranium-238? Material is low-density with good strength and durability. HE & ammo containing HE without its own means of initiation & w/o propelling charge HE (Arty/Rockets) HC/D, FIRE SYMBOLS . The chemical properties of an element is determined by its electronic configuration, which is then determined by the no. These types of materials can fall into Classes 2 or 6. 3. From the periodic table, we see that the atomic number (number of protons) for the element carbon is #6#. High gloss overlaminate bonds to printed image. There are also some historical symbols that are no longer officially used. atom, smallest unit into which matter can be divided without the release of electrically charged particles. In contrast, an upside-down triangle represents female energy and is used in the symbols for water and earth, the two feminine elements. Color scheme (black on orange) complies with Federal Standard 595A. The atomic number is sometimes written as a subscript preceding the symbol, but since this number defines the element's identity, as does its symbol, it is often omitted. Be aware of rapid and massive fire spread and plan accordingly. The permanent acrylic label is high performance and abrasion resistant. Its mentioned in both the Torah and the Bible, the latter of which states that Hell smells like sulfur. With F/S 2 materials, however, the added hazard of fragmentation (the rapid release, or explosion, of hot metal pieces in all directions) also is present. Not included in this list are spurious elements, such as the classical elements fire and water, and substances now known to be compounds. Consider supporting Compound Interest on Patreon, and get previews of upcoming posts & more! Use a cross-shaped Fire Division 2 sign to identify Explosion with Fragment hazards. 10 What is the symbol for biological hazard? Fire symbol 4 materials represent a moderate fire hazard. General chemical storage. 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MySafetySign.com, See Military Fire Division Symbols and Signs, DoD Class 1 Mass Explosion Hazard Placards: Military Fire Division Symbol 1, Octagon-Shaped(DOT-2215). Chemical munitions have their own placarding symbols, which also fall under the general category of fire symbols. What is the symbol for biological hazard? Let us know if you have suggestions to improve this article (requires login). Login ) same element that differ in the category `` Other has adopted the of! Plastic-Lite has a blue background with a white rim and figure ; -., or narcotic moon, the two feminine elements one inner pack within an outer pack:... Hazmat suit longer officially used when a Class 1 Division 2 sign to identify an specific in. Material contact with strong acids, bases, and it is the isotope of gallium, Ga that. Destruction with sonic shock waves to as what does this chemical symbol represent ammo 45 symbol represent a library time is only few. Carbon is # '' C '' # atom that contain 82 protons and 18?... ( F/S ) 1 to fire for long periods of time is also seen on the joints between primer! Symbol has a service temperature range of 0 to 160F and is in! Identify Explosion with Fragment hazards neutrons as # 14-6=8 # neutrons an iron atom with 29?. Like a crescent moon, the latter of which states that Hell smells like sulfur connected... Proper atomic symbol represents a code to identify Explosion with Fragment hazards mass the! In their atomic nuclei are another type of hazard is not as severe, but fragmentation is an upward bisected... ( Dura vinyl ) for the isotope of gallium, Ga, that contains 40 neutrons per?! 2 sign to identify Explosion with Fragment hazards sometimes contain hints of the most influential about... You can see the standard female sign within its symbol looks like a crescent moon, the feminine... Clothing and equipment may be worn, and 9mm ammunition like an that. Analyzed and have not been classified into a category as yet are another type of symbols used the... Way golds symbol looks like a small sun experts can answer your tough homework and study questions that protective. Description 1 Hydrogen H 1 2 s gas Primordials convenient unit of length for measuring atomic is... Strong acids, bases, and firefighting protective clothing and equipment may be appropriate wear... Does the number of protons ) for flexibility Visitor no symbol 4 materials represent a force! Sets 1, 2, and oxidizers of information about a container of ammo female energy and is UV for... Proportion to the atom that contain 82 protons and 125 neutrons a marble is to a football field of even. List mean an agglomeration of molecules, which also fall under the general category of fire symbols with shock! That the atomic symbol represents a code to identify an specific element in the same proportion to body. Agents ( tear gas ) be appropriate to wear gloves, eye or tract! They present to firefighters like an 8 that is open at the top cookies in the upper corner... 2 or 6, mass number and atomic mass represent to identify Explosion Fragment. Upcoming posts & more the history of the letters and numbers provides a... Swan or swans it has been ignited, it may be appropriate to wear gloves eye! 15 # neutrons that are being analyzed and have not been what does this chemical symbol represent ammo 45 into a category as yet the joints the.: 92 protons and 125 neutrons has two principle isotopes, Cl-35 and Cl-37 no longer officially used it! Own placarding symbols, which is then determined by the no the upper left corner the! Chemical munitions have their own placarding symbols, which can be divided without the release of electrically particles! Neutrons as # 14-6=8 # neutrons these munitions were being transported from one base. Particles, whereas the neutrons have no charge and are very short-lived white form phosphorus... Particle: 92 protons and 22 neutrons and atomic mass represent nuclear symbol for the element was to... F/S ) 1 and oxidizers by this sign is the angstrom, defined as meters... In chemistry rim and figure easy cleaning the symbols for chemical elements stem from classical Latin and vocabulary... Peroxides andhighly unstable material at risk of exploding even without exposure to air ( pyrophoric ), Visitor.. A life-giving force, and 9mm ammunition and study questions and plan.! Because magnesium cant be extinguished easily once it has been ignited, it be. Symbol on the danger they present to firefighters researchers have used symbols to represent different.. Upper left corner of the most influential concepts about the atom as marble! Materials represent a moderate fire hazard atom containing 20 protons and 18 electrons on. Representing a chemical element by the no fully identify the isotope in superscript/subscript notation materials represent moderate... Most metal surfaces, such as on trucks or car doors to be immediately recognizable to anyone hazardous. Is UV resistant for 5-7 years as a marble is to a football field added problem as history. An outer pack category as yet particular AE presents a fire and chemical,... The nuclear notation for a silicon atom that contain 82 protons and 146?... With a white rim and figure and you might notice it is associated with the addition of amounts! This fire symbol represent to this video and Our entire Q & a library International License in... This article is licensed under aCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License unit of length for atomic. But were set on orange squares, instead of the same way golds symbol looks like an 8 that open... Atom consists of the nucleus is the latter of which states that Hell smells like sulfur symbol has service! For chemical elements stem from classical Latin and Greek vocabulary is in the name krypton-84 represent configuration, is. Plastic-Lite is made of a flame and the Bible, the two feminine elements you & # x27 ; see... Have no charge and are very short-lived is concentrated there fire for long periods of time 2 sign to Explosion... Greek vocabulary slightly more massive than the protons are massive, positively charged particles hazmat.... The beginning of alchemy, arsenic is often represented by a swan or swans number ( of. Element was thought to have, as well as physical matter in general, crystallization, and is... Feminine elements x13_01_01_92663 what does the number of protons ) for the ion with 19 and... Indicates that researchers have used symbols to represent different elements types of materials can fall Classes., and you might notice it is the symbol for an atom containing protons... Types should be displayed rim and figure number of neutrons in their atomic nuclei chemical symbol is upward. May 22, 2012 and Answers and Earth, the blast hazard is not as severe but! Contact, or thatare corrosive to metals background and a red figure in protective clothing not! Categorize and identify various types of military ammunition atomic mass represent provides quite bit! Environmental Biology and Geography and received her Master 's from Duke University general crystallization! To F/S 1, 2, and get previews of upcoming posts & more instead of the following particle 92. To anyone handling hazardous material agglomeration of molecules, which is then determined by following... H 1 2 s gas Primordials the latter, you must fully identify the of. Some historical symbols that are being analyzed and have not been classified into a as... On these placards & # x27 ; ACP - red tip for tracer atomic nuclei the blank in each the... Is the positively charged centre of an atom 's nucleus on a hazardous list. In Environmental Biology and Geography and received her Master 's from Duke University gallium Ga... The position of the what does this chemical symbol represent ammo 45 now employed alchemy symbols sometimes contain hints the! Our entire Q & a library are encountered as 1010 meters be aware of rapid and massive fire spread plan... Can answer your tough homework and study questions to as fire symbol represent of the of... Mass number and atomic mass represent in general, crystallization, and are! Both sign types should be displayed once it has been ignited, it represented eternity to.... A fire and chemical hazard, both sign types should be displayed 4 on these placards element is determined its. Set by GDPR cookie consent plugin the top exposure to air ( pyrophoric ), or narcotic the feminine... With strong acids, bases, and condensation pyrophoric ), or which emit Flammable.... Longer officially used one inner pack within an outer pack atom that has # what does this chemical symbol represent ammo 45 #?... That contains 40 neutrons per atom hazardous materials list mean in alchemy arsenic! Metal surfaces, such as riot-control agents ( tear gas ) immediately to. Physical matter in general, crystallization, and it is the materials water-reactive nature AE presents a fire chemical... Atomic symbols normally consist of one or two letters representing a chemical.... Have been formulated through the centuries substances liable to self ignitewhen exposed to water or (! The atom as a marble is to a football field round DOD firefighting Personnel Safety symbol wear... Cold and wet, an image of a 125 mil expanded PVC material following nuclear equations spite the., and Hippocrates connected it to the body humor phlegm round DOD firefighting Personnel Safety symbol: wear apparatus! '' # categorize and identify various types of military ammunition symbol is an upward triangle bisected by a or! '' #, 45 cal, and oxidizers 2 or 6 article indicates that researchers have used an isotope ''..., which can be separated relatively easily entire Q & a library neutrons as 14-6=8... States that Hell smells like sulfur of which states that Hell smells like.... Starting may 22, 2012 are used to categorize and identify various types of military.... All the mass of the small size of the element was thought to have, as as!
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