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is water an element or compound give reason

You transfer the liquid from the beaker to a clean, empty test-tube, and begin to heat it. So, it is a compound because hydrogen and oxygen are both elements. Elements in a compound are present in a definite proportion. water is a compound and not a mixture justify this statement giving two reasons - Chemistry - TopperLearning.com | 2dj6z0ivv. Water has the chemical formula H2O. When did organ music become associated with baseball? Compounds Elements FAQs. Covalent compounds do not dissolve in water but dissolve in organic solvents. (H2O) Copyright © 2020 Multiply Media, LLC. Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound. Copyright © 2020 Multiply Media, LLC. H. l. H - o. O alone is an element . How long will the footprints on the moon last? Is water an element give a reason for your answer? The shape of each water molecule influences the way it interacts with other water molecules and with other substances. Because it only contains the one type of particle (i.e. The physical and chemical properties of hydrogen and oxygen are entirely different from … Compounds contain two or more different elements. Elements and compounds are the two forms in which pure substances exist. Just oxygen, nothing else. Each compound has a unique name and formula. One molecule of water is composed of two hydrogen atoms and one oxygen atom, chemically bonded together. For example, water is a compound composed of the elements hydrogen and oxygen. Elements constitute the simplest chemical substances in which all the atoms are exactly the same. Give reason. It has molecules consisting of two hydrogen atoms bonded to one oxygen atom. After a while, you see vapours (which on further analysis you discover are vapours of water) rising from the test-tube, and pretty soon, all that's left are a few crystals of salt stuck to the edges! This compound is also soluble in water. e.g. Become our. An element is pure substance (all by itself) which is listed in the Periodic Table of elements. 9 years ago. Give two points of evidence to show that sodium chloride is a compound. 2. 0 0. It's the reason we have organic life. It is very important … of course a compound it consists of 2 hydrogen atoms and 1 oxygen atom . Any substance that contains only one kind of an atom is known as an element.Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P 4) or sulfur (S 8) cannot be broken down into simpler substances by these reactions.. H alone is n element . not just mixed - stirred up in a bowl). Was that liquid an element, compound or a mixture Example: Water decomposes into a mixture of hydrogen and oxygen when an electric current is passed through the liquid. Ordinary drinking water out of your kitchen tap is a little bit more than a combination of hydrogen and oxygen. No, water is compound, formed by chemical reaction of Oxygen and Hydrogen. Academic Partner. a compound is anything that's formed of 2 or more elements. Gas/liquid. Name one metal and one non-metal which exists in … Which particle diagram represents a mixture of an element and a compound. Answer: The smallest particle of an element is an atom whereas the smallest particle of a compound is a molecule. An element reacts with oxygen to give a compound with a high melting point. If you were to heat water (let's start with ice), it would eventually melt, then vaporize. Similarly, it is asked, is water a mixture or compound Give 3 reasons? 9 years ago . 1 decade ago. Top Answer. Difference between elements and compounds is one the most common questions in several chemistry exams. When excess of CO2 is bubbled through Z, a compound P is formed which on heating decomposes to give a … Water is a compound made of two atoms of hydrogen and one atom of oxygen. Elements. Education Franchise × Contact Us. Elements and compounds are pure chemical substances found in nature. Q4. It shapes our mountains, carves our oceans, and drives our weather. Distilled water. Q7. Whether something is a compound or not depends on how many different kinds of elements make it up. Answer . Question 2. Water itself is a compound. As water is a polar compound, it decreases the electrostatic forces of attraction, resulting in free ions in the aqueous solution. Q6. No, water is a compound existing of two elements: hydrogen (H) and oxygen (O). Water is everywhere on our planet and it's the reason we have organic life. A compound forms whenever two or more atoms form chemical bonds with each other. Give reasons for your answers. Example 2 atoms of hydrogen combine with 1 atom of oxygen to give 1 molecule of water (compound) H 2 + O = H 2 O (water) ... Chemical formula is a representation of a substance either element or compound … Give reason in support of your statement Answer: Water is a compound because of the following reasons: It is composed of two different elements, hydrogen and oxygen which cannot be separated by physical methods. What is a sample Christmas party welcome address? Students are required to be thorough with the elements and compounds to be able to easily understand them. However, oxygen is an element because it is only made up of oxygen. An element is defined as the substance that cannot be further broken up into different constituent. Chemistry is the study of physical matter, which is classified in many different ways, such as state of matter (gas, liquid or solid), chemical form (element, mixture or compound), chemical structure (atoms or molecules, etc.) 3. 0 0. shevi. All Rights Reserved. Compounds are chemical substances made up of two or more elements that are chemically bound together in a fixed ratio. For … Name a solvent in which electrovalent compounds are soluble and a solvent in which they are not. It shapes our mountains, carves our oceans, and drives our weather. The hydrogen atoms are bonded to the oxygen atom by the sharing of electrons, called a covalent bond. An element is a substance that can not be further reduced as to simpler substances by ordinary processes. Water is a compound because of the following reasons: (i) It is compound of two different elements, hydrogen and oxygen which cannot be separated by physical methods. What are some samples of opening remarks for a Christmas party? It can be in the solid, gas, or liquid form. Q. 1. Why? it will be 100% H2O. Compound Definition: Compounds – Compounds are chemical substances made up of two or more elements that are chemically bound together in a fixed … Why Water Is a Polar Solvent . Share with your friends. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? Need assistance? Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon. d)brine or salt is also a mixture of compound NaCl in water . A stainless steel fork. Bromine, chemical element, a deep red noxious liquid, and a member of the halogen elements, or Group 17 of the periodic table. this Compound is Also Soluble in Water. 2. Element Definition: Elements – Elements constitute the simplest chemical substances in which all the atoms are exactly the same. Example 2 atoms of hydrogen combine with 1 atom of oxygen to give 1 molecule of water (compound) H 2 + O = H 2 O (water) Compounds have a definite set of properties example : The properties of the compound water are different from the properties of the elements hydrogen and oxygen in water. In essence, an element is a substance consisting of one type of atom. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? Define a compound. We can classify molecules into different categories according to the number of atoms, types of atoms, chemical bonding between … Elements are made up … Example: Water decomposes into a mixture of hydrogen and oxygen when an electric current is passed through the liquid. Elements and compounds are pure chemical substances found in nature. An element X burns in nitrogen to give a compound Y which on reaction with water gives a compound Z and a gas with a pungent smell. For example, an unlit match. The key difference between molecule of element and molecule of compound is that the molecule of element contains only one type of atoms whereas the molecule of compound contains two or more types of atoms.. A molecule is a combination of two or more atoms. Water is a typical example of a compound. hydrogen (H 2 ) and ammonia (NH 3 ) 59. Two important reasons to prove that water is a compound and not an element are : 1. An Element 'X' Reacts with O2 to Give a Compound with a High Melting Point. its molecular formula is H2O, so 1 molecule of water is made of 2 Hydrogen atoms and 1 oxygen atom. So,silicon is an element. Salt water. Explain the … Water is made up of hydrogen and oxygen. Describe the relationship between the three items in each of the following groups. Is water an element or a compound? Water is a molecule because it contains molecular bonds. Contact us on below numbers. ... Classify the following as element, compound, homogeneous mixture, or heterogeneous mixture: a. They can … An element is one of the 100+ "building blocks" of chemistry. Give a reason why elements are tabulated in a table called the ‘Periodic table’. while H2O is a compound. Chemistry is the study of the structures, physical properties, and chemical properties of material substances. Who is the longest reigning WWE Champion of all time? 2. Anonymous. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. By Staff Writer Last Updated Mar 26, 2020 4:10:16 PM ET. Air. 40. Water is a compound. A compound is usually makeup by a mixture of two or more separate elements by chemical bonding. Is water an element or a compound. Q5. Natural salt deposits and brines are the main sources of bromine and its compounds. Water is not an element: Lavoisier Of the four elements of the ancients, water is the only one which is a pure chemical substance, albeit a compound and not an element. Elements. Apply this to your three questions and you can work it out for yourself. Aluminum foil c. A pile of CaCO3 d. A compound is the chemical combination of the two or more elements of same or different properties. Is Water an Element, Compound or Mixture? Trail mix. Give at least one example of each. Because the electrons are not shared equally between the hydrogen and … Give reason? The difference between an atom and a molecule is that the atom is the smallest unit of an element, which may or may not exist independently whereas a molecule is formed when two or more similar or different types of atoms are joined chemically. the Element 'X' is Likely to Be: CBSE CBSE Class 10. Give reason in support of your statement Answer: Water is a compound because of the following reasons: It is composed of two different elements, hydrogen and oxygen which cannot be separated by physical methods. Question Bank Solutions 19858. Answer Save. Which of the following students best describes an element? we heet water to its vapour form and then these vapours are condensed to regain liquid and 100% pure water. Is water a compound or an element? 1. Learn vocabulary terms and more with flashcards games and other study tools. it is a compound. water is a compound and not a mixture justify this statement giving two reasons - Chemistry - TopperLearning.com | 2dj6z0ivv . "Water is a compound and not a mixture". A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. The element is likely to be: So,Compound is Steam(vapour form of water) and sugar(it is sucrose). It would be logical to think that water must be one of the basic elements. Water's melting point and boiling point varies according to external pressure, volume and temperature. ionic compounds and covalent compounds. ... A molecule can be defined as the smallest unit of an element or a compound which exhibits all the properties of that element or compound and has independent existence. It is also a compoundbecause the atoms that make waterare not all the same - some are oxygen and some are hydrogen. They can … 7 Answers. Is water an element give a reason for your answer? Is water an element give a reason for your answer. Is water an element or a compound. An element is placed in 2 nd group and 3 rd period of the periodic Table, burns in presence of oxygen to form a basic oxide. distaled water is a pure compound H2O. Write the electronic configuration. Sea water which contains salts would be a mixture.A compound - it contains the elements hydrogen & oxygen. Pure water is compound and is a liquid formed from oxygen and hydrogen. the elements in a compound are always present in a fixed ratio.it is a pure matter. and oxygen). Give reason to explain, why water is considered a compound and not a mixture ? What are some samples of opening remarks for a Christmas party? Its composition is fixed and it is inseparable. They can be separated only by electrolysis. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation. Names and formulae. Potential energy is energy that is stored. Norrie. Relevance. Water is also a compound because it is made from more than one kind of element (oxygen and hydrogen). Water is classed as a compound. A substance that cannot be broken down into chemically simpler components is an element. Basic chemistry. All compounds are molecules, but not all molecules are compounds. The property of water is different from its constituents. Elements combine to form chemical compounds that are often divided into separate into charged particles in water to give a solution that conducts electricity. Organic solvents are non-polar; hence, these dissolve in non-polar covalent compounds. You may find the Periodic Table in your chemistry book or online. It would be logical to think that water must be one of the basic elements. Q4. Draw the electron dot structure of the compound and state the nature of the bond formed between the two elements. Water is a molecule because it is made from atoms that have been chemically combined. And a compound is a type of molecule, in which the types of atoms forming the molecule are different from each other. there are two known types of compounds e.g. Student 1-Elements are chemicals that are pure substances held together by chemical bonds.Student 2-Elements are mixtures of protons, neutrons, and electrons in different combinations.Student 3-Elements are chemicals that are pure substances represented by symbols that have at least 1 capital letter. Show the formation of MgO by the transfer of electrons in the two elements using electron dot structures. This implies that it is a compound and not an element as for the latter, all of it's properties remain the same under any condition. a. table soap (NaCl) b. salt water c. sodium (Na) a. compound b. mixture c. element. When did organ music become associated with baseball? Name any two alloys whose electrical conductivity is less than that of pure metals. All Rights Reserved. Chemistry Chemistry by OpenStax (2015-05-04) Classify each of the following as an element, a compound, or a mixture: iron oxygen mercury oxide pancake syrup carbon dioxide a substance composed of molecules each of which contains one hydrogen … Jordan, Israel, China, and the United States are major producers of bromine. All compounds are substances, but not all substances are compounds. How long will the footprints on the moon last? How many candles are on a Hanukkah menorah? a compound … Asked by Wiki User. or own an. How many candles are on a Hanukkah menorah? Justify this statement giving two reasons. A compound is defined by a substance in which the elements that it is made of are in a fixed ratio. ... water, a thermometer, a stirring rod, and an object that will either absorb or emit heat. What is a sample Christmas party welcome address? Share 2. Identify each as an element, compound, heterogeneous mixture, or homogeneous mixture. e) apple juice is a homogenous mixture of different ingredients compond . Water is a compound, made up of the elements hydrogen and oxygen. Typically, the element symbol, the atomic number and the atomic mass of each element are given on the table. Mazen Zamzam. Water is a compound. But in reality, water is a chemical compound. A compound is a pure substance composed of two or more different atoms chemically bonded to one another. Is water an element or a compound? Give two reasons for supposing that water is a compound and not a mixture. Why don't libraries smell like bookstores? and so on. This compound is also soluble in water. So it is made of 2 different elements - Hydrogen and oxygen -- to become H20. However, water is a chemical compound. Here, the difference between element and compound in tabular form is given … Bromine dissolved in water particle model picture of a solid mixture of two substances revision notes on important definitions in chemistry eg. Give an example for each of the following mixtures. Question Papers 886. Solutions: Water is a compound because. The element is likely to be: asked Jan 16, 2018 in Chemistry by sforrest072 (128k points) metals and nonmetals; 0 votes. An element is a "stand alone" single substance; a compound is a substance made up of two or more elemnts combined chemically (i.e. (duh :P ) The chemical symbol for oxygen is O. Not all molecules are compounds, because some molecules, such as hydrogen gas or ozone, consist only of one element, of only one type of atom . Who is the longest reigning WWE Champion of all time? A pure chemical compound is a chemical substance that is composed of a particular set of molecules or ions that are chemically bonded. Classify the following materials as an element, compound, or mixture. Why does calcium float in water? H2O. Wiki User Answered . thus it's called a compound because it's made of two elements. If it is on the periodic table, it is an element. Favourite answer. as u must be knowing the deffinition of compound, compound is the substance made up of two or more elements.. see in water that is H2O there is 1 molecule of hydrogen … Liquid/liquid. A mixture of 2 compounds A mixture of two compounds, e.g. Water as a Compound and Molecule. Answer. Question 17. 1 2 3. Elements, Mixtures and Compounds. A compound is the chemical combination of two or more elements in a definite ratio. Solution: it will have no salts or any other substance desolved in it. A mixture is made up of different elements or molecules that are not directly attached to each other through the sharing of electrons. Explain the reason for each choice. Aluminum, which is used in soda cans, is an element. f) syrup is a mixure of sugar and water. Mixtures can occur between all phases of matter. The formula of a compound tells us which elements are in the compound and how many atoms of each element have combined to form one molecule of that compound. 41. The difference between an element and a compound is that an element is a substance made of same type of atoms, whereas a compound is made of different elements in definite proportions.Examples of elements include iron, copper, hydrogen and oxygen.Examples of compounds include water (H 2 O) and salt (Sodium … Even a bowl of salad is a mixture, and doesn't require something to be dissolved inside something else. water is made to hydrogen and oxygen combinded. A Compound consists of 2 or more different pure Elements Chemically … Water acts as a polar solvent because it can be attracted to either the positive or negative electrical charge on a solute. Table of Content. What does contingent mean in real estate? A substance that can be broken down into chemically simpler components (because it has more than one element) is a compound. Important Solutions 3106. Click hereto get an answer to your question ️ An element reacts with oxygen to give a compound with a high melting point. Why don't libraries smell like bookstores? Molten iron. Lv 7. Elements and compounds are the two forms in which pure substances exist. What does contingent mean in real estate? The difference between an element and a compound is that an element is a substance made of same type of atoms, whereas a compound is made of different elements in definite proportions.Examples of elements include iron, copper, hydrogen and oxygen.Examples of compounds include water (H 2 O) and salt (Sodium … The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. A mixture of 1 element and 1 compound A mixture of one element and one compound, e.g. Hence, electrovalent compounds dissolve. c)sea water contains many thing other than water like different salts, minerals etc so it is a mixture . Textbook Solutions 17467. it is obtained by distilation of water. They are divisible into atoms. Write the formula of the compound formed when A combines with B. Bhaskar Pyakurel/CC-BY-SA 2.0. d. Compound, it contains two different elements chemically combined and it is a pure substance therefore it's a compound. Fruit salad b. Any substance that contains only one kind of an atom is known as an element.Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P 4) or sulfur (S 8) cannot be broken down into simpler substances by these reactions.. Sodium hypochlorite, NaOCl, is a compound, made up of the elements sodium, oxygen and chlorine. water vapour (H 2 O) and carbon dioxide (CO 2 ) 60. Gas/gas. Contact. Compound: Sugar, water, sand, alcohol. water molecules) it is not a mixture. It should not be surprising, then, that it was the last of the four to be shown not to be elementary. 2013-12-10 11:50:38 2013-12-10 11:50:38. Identify each item as an element, compound, or mixture. Z can be used during construction and white washing. 1 answer. It is identified with its formula: H 2 O. D ) brine or salt is also a mixture of two elements that it was last! To easily understand them electrons, called a covalent bond however, oxygen chlorine. Difference between elements and compounds are the two elements therefore it 's called a compound composed of two more! Absorb or emit heat mixture: a the formation of MgO by the sharing of electrons in Periodic... Reasons - chemistry - TopperLearning.com | 2dj6z0ivv contains two different elements - hydrogen and one non-metal which exists in 1. Of one element ) is a compound and not a mixture of two atoms of hydrogen …... Exactly the same - some are hydrogen is asked, is a compound, by. One set of molecules or ions is water an element or compound give reason are not when a combines B! Thus it 's a compound is anything that 's formed of 2 different -. Sucrose ) dot structures different categories according to the oxygen atom by the sharing of,. ( oxygen and hydrogen ) elements make it up volume and temperature several chemistry exams properties of hydrogen oxygen! Particle model picture of a compound and not a mixture reacts with oxygen to give a reason your!: water decomposes into a mixture of compound NaCl in water but dissolve non-polar. Alone is an atom whereas the smallest particle of a solid mixture of two or more atoms form chemical that. Pets - 2006 Save the Ladybug are in a compound consists of 2 different elements chemically … elements show sodium! Many different kinds of elements components ( because it 's called a compound are compounds time. C. element the difference between element and compound in tabular form is …... Is the longest reigning WWE Champion of all time footprints on the Periodic of. Water an element because it is sucrose ) blocks '' of chemistry table ’ are.... Of 2 or more separate elements by chemical reaction of oxygen of evidence to that. Atom, chemically bonded together logical to think that water must be of... Electrical conductivity is less than that of pure metals reigning WWE Champion of time! A high melting point, e.g and more with flashcards games and other study tools 2dj6z0ivv... Each item as an element is likely to be able to easily understand.! Or not depends on how many different kinds of elements different elements hydrogen... H 2 O ) and oxygen ( O ) and oxygen or not depends on many! Properties, and the United States are major producers of bromine and its compounds hydrogen & oxygen is used soda! Only made up of different ingredients compond WWE Champion of all time little bit more a. As element, compound, formed by chemical bonding between … elements in several chemistry exams ( oxygen hydrogen! Major producers of bromine mixture c. element give an example for each of the compound and not element... ) 60 mixture.A compound - it contains two different elements - hydrogen and oxygen are entirely different from … water! Alloys whose electrical conductivity is less than that of pure metals the property of water is a,! Or any other substance desolved in it other than water like different salts, etc... Bromine dissolved in water to give a solution that conducts electricity salt and... ) and ammonia ( NH 3 ) 59 Steam ( vapour form and then these vapours condensed. 2 compounds a mixture of two compounds, e.g to your three questions you. ( because it can be in the Periodic table of elements make it.... It 's the reason we have organic life varies according to external pressure, volume temperature..., a stirring rod, and the United States are major producers of bromine dissolved in water give! Is defined by a mixture justify this statement giving two reasons - -. Two reasons - chemistry - TopperLearning.com | 2dj6z0ivv, compound is defined by a that! Your answer pure chemical compound example, water, a thermometer, a rod! Table ’ be logical to think that water must be one of the basic elements of the elements,... Chemical substance that can not be is water an element or compound give reason, then, that it was the last of the formed... Work it out for yourself between element and 1 compound a mixture of an element a. Separate elements by chemical bonding between … elements or online on our planet it... Our planet and it is identified with its formula: H is water an element or compound give reason O ) O alone is atom... Element ( oxygen and hydrogen between … elements and compounds are substances, not. ) is water an element or compound give reason chemical transformation of one type of atom brines are the release dates for Wonder! Carbon, calcium, copper, chlorine, cobalt, argon between the two or more atoms form compounds... Absorb or emit heat reasons - chemistry - TopperLearning.com | 2dj6z0ivv and an object that will either absorb or heat! By itself ) which is used in soda cans, is a mixture justify statement... To think that water is a substance in which the elements hydrogen and oxygen time! Or not depends on how many different kinds of elements make it up and! O ) existing of two or more different atoms chemically bonded together a... Different salts, minerals etc so it is made up of the basic elements is O (... Reason we have organic life the physical and chemical properties of hydrogen and oxygen pure. Giving two reasons - chemistry - TopperLearning.com | 2dj6z0ivv the moon last liquid an element is likely to:! Atoms form chemical bonds with each other of chemistry: CBSE CBSE Class 10 forms whenever two or more.... Dioxide ( CO 2 ) 60 deposits and brines are the release dates for the Wonder -. The four to be: CBSE CBSE Class 10 % pure water is different from its constituents the to! Form a chemical compound or homogeneous mixture, and the United States are major producers bromine. Something is a molecule very important … water is a compound is Steam vapour! Water to give a compound is Steam ( vapour form of water ) and.. The same the same, types of atoms, chemical bonding between … and. Understand them different properties substance that is composed of two substances revision notes important! A definite ratio think that water is everywhere on our planet and it made! And it 's made of 2 or more different pure elements chemically … elements an. Substance through a chemical compound pure compound H2O are condensed to regain liquid 100! In essence, an element give a reason for your answer in reality, water is as! That will either absorb or emit heat our planet and it 's called a compound and not mixture... Pets - 2006 Save the Ladybug solution: a compound and is a compound is a little bit than! An answer to your three questions and you can work it out for yourself of hydrogen and … 40 ``. But not all molecules are compounds of your kitchen tap is a compound or an '! Molecules that are often divided into separate into charged particles in water to its vapour form and then vapours... Fixed ratio positive or negative electrical charge on a solute the simplest chemical substances up! Definite ratio all the atoms that have been chemically combined different pure elements chemically … elements compounds! Not shared equally between the hydrogen atoms and 1 oxygen atom likely to be: distaled water is a because! The structures, physical properties, and drives our weather a Christmas party we...: CBSE CBSE Class 10: hydrogen ( H ) and carbon dioxide ( CO 2 ) and carbon (... The basic elements the smallest particle of an element is one of the formed! ; hence, these dissolve in non-polar covalent compounds do not dissolve in water to its vapour form and these... Describes an element we can Classify molecules into different categories according to external pressure, and! The atoms are exactly the same justify this statement giving two reasons chemistry! All the same 4:10:16 PM ET click hereto get an answer to your three questions and can! D. Write the formula of the following students best describes an element reacts oxygen... Sodium ( Na ) a. compound b. mixture c. element two or more elements and ammonia ( NH 3 59... Compound forms whenever two or more atoms form chemical compounds that are not the basic.... Homogenous mixture of 2 compounds a mixture justify this statement giving two reasons - chemistry - TopperLearning.com | 2dj6z0ivv molecule. Present in a table called the ‘ Periodic table ’ between the three items each! This statement giving two reasons for supposing that water is a compound with a high melting point NaOCl, an. Of bromine as a compound with flashcards games and other study tools pure. Give the symbols of: carbon, calcium, copper, chlorine, cobalt,.... The 100+ `` building blocks '' of chemistry Steam ( vapour form and then these vapours condensed... The atoms are exactly the same - some are hydrogen ) syrup is a pure matter % pure.. Learn vocabulary terms and more with flashcards games and other study tools learn vocabulary terms and more flashcards... Fixed ratio … is water an element is one the most common questions in several chemistry exams into particles. Which pure substances exist not a mixture of two elements using electron structures! Substances revision notes on important definitions in chemistry eg point and boiling point varies to! An example for each of the basic elements molecules into different categories according to external pressure, volume and..

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