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Unit 3: Bonding and Nomenclature Content Outline: Chemical
... b. The atom that lost an electron (called oxidation), is now positively charged and called a cation. Think “Cats have a positive happy effect on people.” It is called oxidation because an atom usually loses the electron to an Oxygen atom, just like at the end of the Electron Transport Chain in Cel ...
... b. The atom that lost an electron (called oxidation), is now positively charged and called a cation. Think “Cats have a positive happy effect on people.” It is called oxidation because an atom usually loses the electron to an Oxygen atom, just like at the end of the Electron Transport Chain in Cel ...
1 chemistry of the nonmetals
... and the H ion. H 1s0 H 1 s1 H 1s2 Because hydrogen forms compounds with oxidation numbers of both 1 and 1, many periodic tables include the element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). There are many reasons for including hydrogen a ...
... and the H ion. H 1s0 H 1 s1 H 1s2 Because hydrogen forms compounds with oxidation numbers of both 1 and 1, many periodic tables include the element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). There are many reasons for including hydrogen a ...
Matter – Properties and Changes
... unchanging composition; also known as a pure substance. • Mixture: a physical blend of 2 or more pure substances in any proportion in which each substance retains its individual properties; can be separated by physical means • Chemical property: the ability or inability of a substance to combine wit ...
... unchanging composition; also known as a pure substance. • Mixture: a physical blend of 2 or more pure substances in any proportion in which each substance retains its individual properties; can be separated by physical means • Chemical property: the ability or inability of a substance to combine wit ...
Chapter 1
... a solid, liquid, or gas at room temperature? Write the balanced chemical equation for the reaction. You need to look at the charges for both ions and write a formula that is neutral as the compound. Since ionic compounds are all solid at room temperature, and sodium bromide is an ionic compound, yo ...
... a solid, liquid, or gas at room temperature? Write the balanced chemical equation for the reaction. You need to look at the charges for both ions and write a formula that is neutral as the compound. Since ionic compounds are all solid at room temperature, and sodium bromide is an ionic compound, yo ...
Chapter 7
... • Ionic compounds are usually composed of a metal cation and a nonmetal anion. • Ionic compounds are electrically neutral: the total positive charge is equal to the total negative charge. • Ionic compounds are held together by the attraction of the cations to the anions, this attraction is known as ...
... • Ionic compounds are usually composed of a metal cation and a nonmetal anion. • Ionic compounds are electrically neutral: the total positive charge is equal to the total negative charge. • Ionic compounds are held together by the attraction of the cations to the anions, this attraction is known as ...
Chemistry SOL Review
... • You can’t know both where the electron is and where it is going at the same time. • Electrons buzz around the nucleus like gnats buzzing ...
... • You can’t know both where the electron is and where it is going at the same time. • Electrons buzz around the nucleus like gnats buzzing ...
A-level Paper 3 Practice Paper 3 - A
... Give one large-scale application of the use of chlorine in water. Explain why it is used in this application even though chlorine is very toxic. Do not include cost. Example of application…..................................................................... Explanation of use ...................... ...
... Give one large-scale application of the use of chlorine in water. Explain why it is used in this application even though chlorine is very toxic. Do not include cost. Example of application…..................................................................... Explanation of use ...................... ...
2011-2012 Summer Packet - Tenafly Public Schools
... D Physical & chemical properties: A physical property is a characteristic of matter that can be determined without changing the chemical formula of the substance. These properties include density, freezing point, or melting point (same point) boiling point, hardness, electrical conductivity, malleab ...
... D Physical & chemical properties: A physical property is a characteristic of matter that can be determined without changing the chemical formula of the substance. These properties include density, freezing point, or melting point (same point) boiling point, hardness, electrical conductivity, malleab ...
METALS AND NON – METALS Concepts
... Properties of ionic compounds 1. Physical nature:solid and hard due to strong force of attraction. (generally brittle) 2. Melting point and boiling point:have high M.P and B.P, as large amount of heat energy is required to break strong ionic attraction. 3. Solubility: soluble in water and insoluble ...
... Properties of ionic compounds 1. Physical nature:solid and hard due to strong force of attraction. (generally brittle) 2. Melting point and boiling point:have high M.P and B.P, as large amount of heat energy is required to break strong ionic attraction. 3. Solubility: soluble in water and insoluble ...
Lecture 21 revised (Slides) October 12
... Expanded Electron Configurations & Orbital Diagrams • The detailed electron configurations of atoms and monatomic ions can also be represented using orbital diagrams. Here a box represents each orbital and arrows indicate both the “spins” of electrons (ms value +ve or –ve) and whether the orbital c ...
... Expanded Electron Configurations & Orbital Diagrams • The detailed electron configurations of atoms and monatomic ions can also be represented using orbital diagrams. Here a box represents each orbital and arrows indicate both the “spins” of electrons (ms value +ve or –ve) and whether the orbital c ...
Stoichiometry Worksheet #4
... 1. Silver sulfide (Ag2S) is the common tarnish on silver objects. What weight of silver sulfide can be made from 1.23 g of hydrogen sulfide (H2S) obtained from a rotten egg? The reaction of formation of silver sulfide is given below: Ag(s) + H2S(g) + O2(g) Ag2S(s) + H2O(l) (Equation must first be b ...
... 1. Silver sulfide (Ag2S) is the common tarnish on silver objects. What weight of silver sulfide can be made from 1.23 g of hydrogen sulfide (H2S) obtained from a rotten egg? The reaction of formation of silver sulfide is given below: Ag(s) + H2S(g) + O2(g) Ag2S(s) + H2O(l) (Equation must first be b ...
program
... aluminium, silicon, phosphorous, sulfur, chlorine, argon, potassium, calcium, iron, nickel, copper, zinc, bromine, silver, tin, iodine, barium, platinum, gold, mercury, lead, uranium. sb8 give the formulas of the following substances when the name has been given and the other way around: • ammonia, ...
... aluminium, silicon, phosphorous, sulfur, chlorine, argon, potassium, calcium, iron, nickel, copper, zinc, bromine, silver, tin, iodine, barium, platinum, gold, mercury, lead, uranium. sb8 give the formulas of the following substances when the name has been given and the other way around: • ammonia, ...
Syracuse University
... Course Website at http://supa.syr.edu/Subjects/Chemistry/syllabi/ INTRODUCTION AND LEARNING GOALS - Whether we like it or not, we live in a dynamic chemical universe. Chemical properties and reactions influence our every action (and reaction). We rely upon chemical properties and reactions to both s ...
... Course Website at http://supa.syr.edu/Subjects/Chemistry/syllabi/ INTRODUCTION AND LEARNING GOALS - Whether we like it or not, we live in a dynamic chemical universe. Chemical properties and reactions influence our every action (and reaction). We rely upon chemical properties and reactions to both s ...
Carefully detach the last page. It is the Data Sheet.
... 28 Which of the following is a brittle solid and an electrical insulator at room temperature, but an excellent electrical conductor in its liquid form? A ...
... 28 Which of the following is a brittle solid and an electrical insulator at room temperature, but an excellent electrical conductor in its liquid form? A ...
Unit 1 Powerpoint
... Elements are represented by one- or two-letter symbols. For example, C stands for carbon, H for hydrogen, Na for sodium, and Hg for mercury (shown). ...
... Elements are represented by one- or two-letter symbols. For example, C stands for carbon, H for hydrogen, Na for sodium, and Hg for mercury (shown). ...
2008 local exam - American Chemical Society
... (A) The initial precipitate will contain CaF2 only. (B) The initial precipitate will contain MgF2 only. (C) The initial precipitate will contain both CaF2 and MgF2 with more CaF2. (D) The initial precipitate will contain both CaF2 and MgF2 with more MgF2. 37. Which range includes the average oxidati ...
... (A) The initial precipitate will contain CaF2 only. (B) The initial precipitate will contain MgF2 only. (C) The initial precipitate will contain both CaF2 and MgF2 with more CaF2. (D) The initial precipitate will contain both CaF2 and MgF2 with more MgF2. 37. Which range includes the average oxidati ...
Theoretical Competition - Austrian Chemistry Olympiad
... In order to gain information about the kinetics of this reaction, it is possible to titrate S2O32- with iodine solution from time to time. The following procedure is convenient. 2.00 mL of the thiosulphate solution, which is used in the experiment, need 12.2 mL of iodine solution with c = 5.00·10-3 ...
... In order to gain information about the kinetics of this reaction, it is possible to titrate S2O32- with iodine solution from time to time. The following procedure is convenient. 2.00 mL of the thiosulphate solution, which is used in the experiment, need 12.2 mL of iodine solution with c = 5.00·10-3 ...
The Representative Elements: Group 5A Through 8A
... Oxo-acids and Oxo-anions of Nitrogen Nitric acid (HNO3) and nitrous acid (HNO2) are the two common oxo-acids of nitrogen. Nitric acid is a strong acid and a very powerful oxidizing agent. It oxidizes almost all metals it comes in contact with, except gold and platinum. Unlike the reactions of metal ...
... Oxo-acids and Oxo-anions of Nitrogen Nitric acid (HNO3) and nitrous acid (HNO2) are the two common oxo-acids of nitrogen. Nitric acid is a strong acid and a very powerful oxidizing agent. It oxidizes almost all metals it comes in contact with, except gold and platinum. Unlike the reactions of metal ...
AP Chemistry - School Webmasters
... multitude of tremendous chemistry resources available on the Internet. With access to hundreds of websites either in your home or at the local library, I am confident that you will have sufficient resources to prepare adequately for the fall semester. The reference text book as part of AP course is ...
... multitude of tremendous chemistry resources available on the Internet. With access to hundreds of websites either in your home or at the local library, I am confident that you will have sufficient resources to prepare adequately for the fall semester. The reference text book as part of AP course is ...
Chemical changes
... Some, but not all physical changes can be reversed. You could refreeze the water into ice, but you cannot put your hair back together if you don’t like your haircut! ...
... Some, but not all physical changes can be reversed. You could refreeze the water into ice, but you cannot put your hair back together if you don’t like your haircut! ...
Review Session 3 Problems
... 1) Titanium tetrachloride is an important industrial chemical. It is used for preparing the TiO2, the white pigment in paints and paper. It can be made using an impure titanium ore(often impure TiO2) with carbon and chlorine. ...
... 1) Titanium tetrachloride is an important industrial chemical. It is used for preparing the TiO2, the white pigment in paints and paper. It can be made using an impure titanium ore(often impure TiO2) with carbon and chlorine. ...
CHEMISTRY 1710 - Practice Exam #2 (KATZ)
... B) 2 K+(aq) + SO42-(aq) → K2SO4(s) C) H+(aq) + OH-(aq) + 2 K+(aq) + SO42-(aq) → H2O(l) + K2SO4(s) D) H22+(aq) + OH-(aq) → H2(OH)2(l) _____ 18. The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution ...
... B) 2 K+(aq) + SO42-(aq) → K2SO4(s) C) H+(aq) + OH-(aq) + 2 K+(aq) + SO42-(aq) → H2O(l) + K2SO4(s) D) H22+(aq) + OH-(aq) → H2(OH)2(l) _____ 18. The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution ...
Atomic Structure
... 2 What can be determined if only the atomic number of an atom is known? (1) total number of neutrons in the atom, only (2) total number of protons in the atom, only (3) total number of protons and the total number of neutrons in the atom (4) total number of protons and the total number of electrons ...
... 2 What can be determined if only the atomic number of an atom is known? (1) total number of neutrons in the atom, only (2) total number of protons in the atom, only (3) total number of protons and the total number of neutrons in the atom (4) total number of protons and the total number of electrons ...
Chapter 20 – The Representative Elements
... For example, accumulation of nitrogen-rich nutrients in some water bodies (lakes and rivers) from farm run-off results in “algal blooms” that leads to condition known as eutrophication. That is, the deplication of water oxygen content that causes suffocation to fish and other aquatic lives. Nitroge ...
... For example, accumulation of nitrogen-rich nutrients in some water bodies (lakes and rivers) from farm run-off results in “algal blooms” that leads to condition known as eutrophication. That is, the deplication of water oxygen content that causes suffocation to fish and other aquatic lives. Nitroge ...
Thermochemistry 2 Matching Match each item with the correct
... Matching Match each item with the correct statement below. a. heat of reaction d. heat of fusion b. heat of formation e. heat of solution c. Hess's law of heat summation ____ ...
... Matching Match each item with the correct statement below. a. heat of reaction d. heat of fusion b. heat of formation e. heat of solution c. Hess's law of heat summation ____ ...
Redox
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Redox reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between species. The term ""redox"" comes from two concepts involved with electron transfer: reduction and oxidation. It can be explained in simple terms: Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion. Reduction is the gain of electrons or a decrease in oxidation state by a molecule, atom, or ion.Although oxidation reactions are commonly associated with the formation of oxides from oxygen molecules, these are only specific examples of a more general concept of reactions involving electron transfer.Redox reactions, or oxidation-reduction reactions, have a number of similarities to acid–base reactions. Like acid–base reactions, redox reactions are a matched set, that is, there cannot be an oxidation reaction without a reduction reaction happening simultaneously. The oxidation alone and the reduction alone are each called a half-reaction, because two half-reactions always occur together to form a whole reaction. When writing half-reactions, the gained or lost electrons are typically included explicitly in order that the half-reaction be balanced with respect to electric charge.Though sufficient for many purposes, these descriptions are not precisely correct. Oxidation and reduction properly refer to a change in oxidation state — the actual transfer of electrons may never occur. The oxidation state of an atom is the fictitious charge that an atom would have if all bonds between atoms of different elements were 100% ionic. Thus, oxidation is better defined as an increase in oxidation state, and reduction as a decrease in oxidation state. In practice, the transfer of electrons will always cause a change in oxidation state, but there are many reactions that are classed as ""redox"" even though no electron transfer occurs (such as those involving covalent bonds).There are simple redox processes, such as the oxidation of carbon to yield carbon dioxide (CO2) or the reduction of carbon by hydrogen to yield methane (CH4), and more complex processes such as the oxidation of glucose (C6H12O6) in the human body through a series of complex electron transfer processes.