A-level Paper 3 Practice Paper 3 - A
... Two different chlorine-containing compounds are formed when chlorine reacts with cold, dilute sodium hydroxide solution. One of these compounds is sodium chloride. Name the other chlorine-containing compound formed. ...
... Two different chlorine-containing compounds are formed when chlorine reacts with cold, dilute sodium hydroxide solution. One of these compounds is sodium chloride. Name the other chlorine-containing compound formed. ...
Chemistry of CHLORINE
... b) Compare the atomic radius and ionic radius of chloride ion and chlorine. Explain. The radius of chlorine is smaller than the ionic radius o the chloride ion. Effective nucleus attraction on outer energy level in chloride ion is less than chlorine atom because of extra gained electron gained elect ...
... b) Compare the atomic radius and ionic radius of chloride ion and chlorine. Explain. The radius of chlorine is smaller than the ionic radius o the chloride ion. Effective nucleus attraction on outer energy level in chloride ion is less than chlorine atom because of extra gained electron gained elect ...
National 5 Unit 1 Homework Booklet
... (c) Name the two pollutant gases changed by the catalyst and describe what they are changed into. 4. Explain why solid citric acid does not conduct electricity yet when it dissolves in water it does conduct. 5. Electrolysis of acids can be used to confirm the presence of hydrogen ions. (a) At which ...
... (c) Name the two pollutant gases changed by the catalyst and describe what they are changed into. 4. Explain why solid citric acid does not conduct electricity yet when it dissolves in water it does conduct. 5. Electrolysis of acids can be used to confirm the presence of hydrogen ions. (a) At which ...
Homework Booklet Unit 1 Feb14
... (c) Name the two pollutant gases changed by the catalyst and describe what they are changed into. 4. Explain why solid citric acid does not conduct electricity yet when it dissolves in water it does conduct. 5. Electrolysis of acids can be used to confirm the presence of hydrogen ions. (a) At which ...
... (c) Name the two pollutant gases changed by the catalyst and describe what they are changed into. 4. Explain why solid citric acid does not conduct electricity yet when it dissolves in water it does conduct. 5. Electrolysis of acids can be used to confirm the presence of hydrogen ions. (a) At which ...
inorganic chemistry
... the fact that the atoms of these elements have only one electron less than the stable noble gas (ns2np6) configurations. Therefore, may have maximum tendency to accept an additional electron. (ii) In general, electron affinity decreases from top to bottom in a group. This is due to the fact that the ...
... the fact that the atoms of these elements have only one electron less than the stable noble gas (ns2np6) configurations. Therefore, may have maximum tendency to accept an additional electron. (ii) In general, electron affinity decreases from top to bottom in a group. This is due to the fact that the ...
specimen
... ‘Dot-and-cross’ diagrams are used to model which electrons are present in the ion. Draw a ‘dot-and-cross’ diagram, including outer electron shells only, to show the ions present in magnesium chloride, MgCl2. ...
... ‘Dot-and-cross’ diagrams are used to model which electrons are present in the ion. Draw a ‘dot-and-cross’ diagram, including outer electron shells only, to show the ions present in magnesium chloride, MgCl2. ...
Removal of Chlorine Removal of Chlorine
... Terminal hydroxyl groups associated with Zr(OH)4 contribute to the removal of HCl and product HCl (from hydrolysis of Cl2 or COCl2) Addition of zinc to the formulation greatly improves the resulting filtration performance, yielding a media that far exceeds the performance of the ...
... Terminal hydroxyl groups associated with Zr(OH)4 contribute to the removal of HCl and product HCl (from hydrolysis of Cl2 or COCl2) Addition of zinc to the formulation greatly improves the resulting filtration performance, yielding a media that far exceeds the performance of the ...
www.xtremepapers.net
... Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included ...
... Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included ...
Group 17: The Halogens - Chemwiki
... react with the noble gas xenon and form the strong oxidizing agent Xenon Difluoride (XeF2). There are many uses for fluorine, which will be discussed in Part VI of this article. 2. Chlorine - Chlorine has the atomic number 17 and the chemical symbol Cl. Chlorine was discovered in 1774 by extracting ...
... react with the noble gas xenon and form the strong oxidizing agent Xenon Difluoride (XeF2). There are many uses for fluorine, which will be discussed in Part VI of this article. 2. Chlorine - Chlorine has the atomic number 17 and the chemical symbol Cl. Chlorine was discovered in 1774 by extracting ...
Chapter 7-8-9
... Which of the following pairs of elements is most likely to form a covalent compound? a. magnesium and c. oxygen and chlorine fluorine d. sodium and b. lithium and bromine aluminuim Which is a physical property of ionic compounds in their solid state? a. good conductor of electricity b. weak attracti ...
... Which of the following pairs of elements is most likely to form a covalent compound? a. magnesium and c. oxygen and chlorine fluorine d. sodium and b. lithium and bromine aluminuim Which is a physical property of ionic compounds in their solid state? a. good conductor of electricity b. weak attracti ...
File
... halogens? All halogens have seven electrons in their outer shell. This means that: They can easily obtain a full outer shell by gaining one electron. They all gain an electron in reactions to form negative ions with a -1 charge. ...
... halogens? All halogens have seven electrons in their outer shell. This means that: They can easily obtain a full outer shell by gaining one electron. They all gain an electron in reactions to form negative ions with a -1 charge. ...
Ionic Bonding
... 13. How many elements are there in a tertiary compound? 14. Use each of the following terms correctly in a sentence about the formation of compounds: (a) polyatomic ion (b) oxyanion (c) hydrate 15. Write the IUPAC name for each of the following ionic compounds: (a) NaNO3(s) (found in tobacco) (b) Na ...
... 13. How many elements are there in a tertiary compound? 14. Use each of the following terms correctly in a sentence about the formation of compounds: (a) polyatomic ion (b) oxyanion (c) hydrate 15. Write the IUPAC name for each of the following ionic compounds: (a) NaNO3(s) (found in tobacco) (b) Na ...
6CH02 - MPPE
... (f) 2-chlorobutane can be made from butan-2-ol. (i) Name the chemical you would add to butan-2-ol in the laboratory to make 2-chlorobutane. ...
... (f) 2-chlorobutane can be made from butan-2-ol. (i) Name the chemical you would add to butan-2-ol in the laboratory to make 2-chlorobutane. ...
unit 7 h chem notes - chemical equations
... II. Sometimes it is necessary to abbreviate the “phase” of the substance to the lower right of the substance. Some abbreviations are: s = solid, l= liquid, g ( )= gas, aq= aqueous, ppt ( )= precipitate. III Write equations using correct formulas of diatomic molecules, then Balance the equation for e ...
... II. Sometimes it is necessary to abbreviate the “phase” of the substance to the lower right of the substance. Some abbreviations are: s = solid, l= liquid, g ( )= gas, aq= aqueous, ppt ( )= precipitate. III Write equations using correct formulas of diatomic molecules, then Balance the equation for e ...
Abstract - Engineering | UMass
... DCAN (Reckhow et al., 1990). Algal suspensions, rich in proteinaceous material, are well known to readily form DHANs (Oliver, 1983; Plummer & Edzwald, 1998). In addition, the basic fractions of extracted NOM have been shown to produced the highest levels of DCAN upon chlorination (Reckhow et al., 20 ...
... DCAN (Reckhow et al., 1990). Algal suspensions, rich in proteinaceous material, are well known to readily form DHANs (Oliver, 1983; Plummer & Edzwald, 1998). In addition, the basic fractions of extracted NOM have been shown to produced the highest levels of DCAN upon chlorination (Reckhow et al., 20 ...
AP Chemistry Summer Assignment
... For those students who have just taken Chemistry 1, much of the material in the summer packet will be familiar to you. For those students who have not taken Chemistry for a while the problems will help you rebuild a foundation in chemistry and insure all students are on a relatively even plane. It w ...
... For those students who have just taken Chemistry 1, much of the material in the summer packet will be familiar to you. For those students who have not taken Chemistry for a while the problems will help you rebuild a foundation in chemistry and insure all students are on a relatively even plane. It w ...
Dear Chemistry Student, I am excited that you have chosen to
... I am excited that you have chosen to challenge yourself by taking on the rigors of AP Chemistry here at Cathedral Catholic High School. In order to prepare you for the expected performance outcomes of the course, every one will be expected to complete a Summer Independent Study Program. Since studen ...
... I am excited that you have chosen to challenge yourself by taking on the rigors of AP Chemistry here at Cathedral Catholic High School. In order to prepare you for the expected performance outcomes of the course, every one will be expected to complete a Summer Independent Study Program. Since studen ...
284
... 31. Although we usually think of substances as “burning” only in oxygen gas, the process of rapid oxidation to produce a flame may also take place in other strongly oxidizing gases. For example, when lion is heated and placed in pure chlorine gas, the iron “burns” according to the following (unbala ...
... 31. Although we usually think of substances as “burning” only in oxygen gas, the process of rapid oxidation to produce a flame may also take place in other strongly oxidizing gases. For example, when lion is heated and placed in pure chlorine gas, the iron “burns” according to the following (unbala ...
Atomic Theories and Models - MrD-Home
... The chemical equation for the reaction of methane and oxygen is ______ yet properly balanced because the atoms of the elements on the product side do not ______ the atoms of each element on the reactant side of the equation. The _________________________, which states that matter can neither be ____ ...
... The chemical equation for the reaction of methane and oxygen is ______ yet properly balanced because the atoms of the elements on the product side do not ______ the atoms of each element on the reactant side of the equation. The _________________________, which states that matter can neither be ____ ...
EXAM 1 - gozips.uakron.edu
... In the STUDENT ID field, enter two zeros, then your 7-digit UA ID number. (if your ID number has fewer than 7 digits, fill with zeros so that your number is as far to the right as it can go.) o That is, enter ID Number “1234567” as “001234567”. You MUST bubble 3150:151-005 in the Dept/Course/Section ...
... In the STUDENT ID field, enter two zeros, then your 7-digit UA ID number. (if your ID number has fewer than 7 digits, fill with zeros so that your number is as far to the right as it can go.) o That is, enter ID Number “1234567” as “001234567”. You MUST bubble 3150:151-005 in the Dept/Course/Section ...
Chlorine at the Work Site
... liquid can also burn the skin. People who are exposed to chlorine can develop some tolerance to its odour and irritating properties. Most of the inorganic chlorine compounds have similar health effects to chlorine, but in varying degrees of severity. Workers are exposed most often to chlorine from i ...
... liquid can also burn the skin. People who are exposed to chlorine can develop some tolerance to its odour and irritating properties. Most of the inorganic chlorine compounds have similar health effects to chlorine, but in varying degrees of severity. Workers are exposed most often to chlorine from i ...
Formulae/ Equations homework - St Peter the Apostle High School
... (c) When iron is produced in the blast furnace from iron ore, the iron (III) oxide in the ore reacts with carbon monoxide gas. Carbon dioxide is also formed in the reaction. (d) Carbon dioxide gas and black copper oxide powder are formed when green copper carbonate powder is heated in a test tube. ( ...
... (c) When iron is produced in the blast furnace from iron ore, the iron (III) oxide in the ore reacts with carbon monoxide gas. Carbon dioxide is also formed in the reaction. (d) Carbon dioxide gas and black copper oxide powder are formed when green copper carbonate powder is heated in a test tube. ( ...
Chlorine
Chlorine is a chemical element with symbol Cl and atomic number 17. Chlorine is in the halogen group (17) and is the second lightest halogen following fluorine. The element is a yellow-green gas under standard conditions, where it forms diatomic molecules. Chlorine has the highest electron affinity and the third highest electronegativity of all the reactive elements. For this reason, chlorine is a strong oxidizing agent. Free chlorine is rare on Earth, and is usually a result of direct or indirect oxidation by oxygen.The most common compound of chlorine, sodium chloride (common salt), has been known since ancient times. Around 1630, chlorine gas was first synthesized in a chemical reaction, but not recognized as a fundamentally important substance. Characterization of chlorine gas was made in 1774 by Carl Wilhelm Scheele, who supposed it to be an oxide of a new element. In 1809, chemists suggested that the gas might be a pure element, and this was confirmed by Sir Humphry Davy in 1810, who named it from Ancient Greek: χλωρóς (khlôros) ""pale green"".Nearly all chlorine in the Earth's crust occurs as chloride in various ionic compounds, including table salt. It is the second most abundant halogen and 21st most abundant chemical element in Earth's crust. Elemental chlorine is commercially produced from brine by electrolysis. The high oxidizing potential of elemental chlorine led commercially to free chlorine's bleaching and disinfectant uses, as well as its many uses of an essential reagent in the chemical industry. Chlorine is used in the manufacture of a wide range of consumer products, about two-thirds of them organic chemicals such as polyvinyl chloride, as well as many intermediates for production of plastics and other end products which do not contain the element. As a common disinfectant, elemental chlorine and chlorine-generating compounds are used more directly in swimming pools to keep them clean and sanitary.In the form of chloride ions, chlorine is necessary to all known species of life. Other types of chlorine compounds are rare in living organisms, and artificially produced chlorinated organics range from inert to toxic. In the upper atmosphere, chlorine-containing organic molecules such as chlorofluorocarbons have been implicated in ozone depletion. Small quantities of elemental chlorine are generated by oxidation of chloride to hypochlorite in neutrophils, as part of the immune response against bacteria. Elemental chlorine at high concentrations is extremely dangerous and poisonous for all living organisms, and was used in World War I as the first gaseous chemical warfare agent.