Balancing Redox Reactions 1 - VCC Library
... electrons lost in the oxidation process must equal the total number of electrons gained during the reduction process. In a redox reaction, the substance that gets oxidized (that loses electrons) is called the reducing agent because it reduces the other substance by giving its electrons. The substanc ...
... electrons lost in the oxidation process must equal the total number of electrons gained during the reduction process. In a redox reaction, the substance that gets oxidized (that loses electrons) is called the reducing agent because it reduces the other substance by giving its electrons. The substanc ...
Chemical Reactions Notes-1a-1
... The positive ions have the surrounding oxygen atoms of water pointing towards the ion, negative ions have the surrounding hydrogen atoms of water pointing towards the ion. The transport of ions through the solution causes electric current to flow through the solution. ...
... The positive ions have the surrounding oxygen atoms of water pointing towards the ion, negative ions have the surrounding hydrogen atoms of water pointing towards the ion. The transport of ions through the solution causes electric current to flow through the solution. ...
4.IonicCompounds - Gleneaglesunit1and2chemistry2012
... state they are not free to move. – When an ionic compound melts, however, the particles are free to move and the compound will conduct electricity. ...
... state they are not free to move. – When an ionic compound melts, however, the particles are free to move and the compound will conduct electricity. ...
`plum pudding` model - School District of Clayton
... quantum atomic model. • Describes the atom as mostly empty space with a tiny massive nucleus with protons and neutrons at the center. Surrounding the nucleus is a cloudlike region of electrons moving too fast to describe their location in space and time. ...
... quantum atomic model. • Describes the atom as mostly empty space with a tiny massive nucleus with protons and neutrons at the center. Surrounding the nucleus is a cloudlike region of electrons moving too fast to describe their location in space and time. ...
REDOX EQUILIBRIA SL - chemistryatdulwich
... (b) 2NaCl (aq) + F2 (aq) 2NaF (aq) + CI2 (aq) (c) CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s) (d) Cu(s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag(s) (e) CuO (s) + H2 (g) Cu (s) + H2O (l) (f) 2Fe2+(aq) + I2(aq) 2Fe3+(aq) + 2I-(aq) (g) Sn2+ (aq) + 2Fe3+ (aq) Sn4+ (aq) + 2Fe2+ (aq) (h) 3I2(aq) + 3OH - ...
... (b) 2NaCl (aq) + F2 (aq) 2NaF (aq) + CI2 (aq) (c) CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s) (d) Cu(s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag(s) (e) CuO (s) + H2 (g) Cu (s) + H2O (l) (f) 2Fe2+(aq) + I2(aq) 2Fe3+(aq) + 2I-(aq) (g) Sn2+ (aq) + 2Fe3+ (aq) Sn4+ (aq) + 2Fe2+ (aq) (h) 3I2(aq) + 3OH - ...
Topic 2.1 Atomic Structure Notes Topic 2.1 Atomic
... that was first proposed by Rutherford. (1.8) 2.Paradigm shifts- the subatomic particle theory of matter represents a paradigm shift in science that occurred in the late 1800s (2.3) ...
... that was first proposed by Rutherford. (1.8) 2.Paradigm shifts- the subatomic particle theory of matter represents a paradigm shift in science that occurred in the late 1800s (2.3) ...
File
... 1) There is a hand weight on the floor in front of the table. 2) Pick up the weight and put it on the table. Note how much energy you expended. 3) Put the weight back on the floor. 4) Calculate the energy expended: ...
... 1) There is a hand weight on the floor in front of the table. 2) Pick up the weight and put it on the table. Note how much energy you expended. 3) Put the weight back on the floor. 4) Calculate the energy expended: ...
Atoms – Building Blocks of Matter Notes
... 4. Isotopes – atoms with the same number of protons (atomic number is the same) but different numbers of neutrons (mass number is different). Usually isotopes are referred to by their name (of symbol) and their mass number. Every element on the chart has at least 2 isotopes and some elements have as ...
... 4. Isotopes – atoms with the same number of protons (atomic number is the same) but different numbers of neutrons (mass number is different). Usually isotopes are referred to by their name (of symbol) and their mass number. Every element on the chart has at least 2 isotopes and some elements have as ...
Chapter 12 Oxidation-Reduction Reactions
... spontaneously. 3. Make a simple redox table similar to Table 12.1 that contains all the metal atoms and metal ions that you analyzed in this investigation. Note that the ion that was able to oxidize all other metal atoms is placed at the top of the left column. In the next row, place the ion that ox ...
... spontaneously. 3. Make a simple redox table similar to Table 12.1 that contains all the metal atoms and metal ions that you analyzed in this investigation. Note that the ion that was able to oxidize all other metal atoms is placed at the top of the left column. In the next row, place the ion that ox ...
Nature of chemical reaction - Environmental-Chemistry
... Energy and chemical reactions: • Chemical reactions are breaking of old bonds from reactant-molecules and formation of new bonds in product-molecules. • Chemical reactions involve changes in energy. Photosynthesis is an endothermic reaction. • Energy is released (exothermic) during formation of bon ...
... Energy and chemical reactions: • Chemical reactions are breaking of old bonds from reactant-molecules and formation of new bonds in product-molecules. • Chemical reactions involve changes in energy. Photosynthesis is an endothermic reaction. • Energy is released (exothermic) during formation of bon ...
1.0 basic concepts
... All ionic compounds are either solids or dissolved in water, (s) or (aq) A rule of thumb: Ø Ionic compounds dissolve in water. Ø If there is water as a product or water as (aq) in the reactants then the ionic compound’s state symbol will be (aq) ...
... All ionic compounds are either solids or dissolved in water, (s) or (aq) A rule of thumb: Ø Ionic compounds dissolve in water. Ø If there is water as a product or water as (aq) in the reactants then the ionic compound’s state symbol will be (aq) ...
Bonding - Inorganic Chemistry
... from predicted bond length 1 Multiple bonds: Multiple bonds are shorter than single bonds. (N2 triple bond 1.10 Å; N2 double bond 1.25 Å and N2 single bond 1.45 Å. 2 Hybridisation: Hybridisation can also affect the covalent radius since s orbitals are more contracted than p orbitals. The radius will ...
... from predicted bond length 1 Multiple bonds: Multiple bonds are shorter than single bonds. (N2 triple bond 1.10 Å; N2 double bond 1.25 Å and N2 single bond 1.45 Å. 2 Hybridisation: Hybridisation can also affect the covalent radius since s orbitals are more contracted than p orbitals. The radius will ...
Power Point Presentation
... Each element is a combination of two properties: Fire = hot + dry Earth = cold + dry Water = cold + wet Air = hot + wet Aristotle’s definition of an element: Let us define the Element in bodies as that into which other bodies may be analyzed, which are present in them either potentially or actually ...
... Each element is a combination of two properties: Fire = hot + dry Earth = cold + dry Water = cold + wet Air = hot + wet Aristotle’s definition of an element: Let us define the Element in bodies as that into which other bodies may be analyzed, which are present in them either potentially or actually ...
Chemical Equations
... compounds by exchanging cations and anions Reactants are ionic compounds or acids, usually in aqueous solution Insoluble products will precipitate out of solution or be released as gases AKA double displacement reactions ...
... compounds by exchanging cations and anions Reactants are ionic compounds or acids, usually in aqueous solution Insoluble products will precipitate out of solution or be released as gases AKA double displacement reactions ...
Document
... The Must Be Something Else There! • to answer these questions, Rutherford proposed that there was another particle in the nucleus – it is called a neutron • neutrons have no charge and a mass of 1 amu the masses of the proton and neutron are both approximately 1 amu ...
... The Must Be Something Else There! • to answer these questions, Rutherford proposed that there was another particle in the nucleus – it is called a neutron • neutrons have no charge and a mass of 1 amu the masses of the proton and neutron are both approximately 1 amu ...
chapter 7-Chemical Bonding
... H, a nonmetal, forms ionic compounds with IA and IIA metals for example, LiH, KH, CaH2, and BaH2. Other hydrogen compounds are covalent. Group IA and IIA can form peroxide (contain O22- ion ) or superoxide (contain O2- ion). The peroxide and superoxide ions contain atoms that are covalently 30 bonde ...
... H, a nonmetal, forms ionic compounds with IA and IIA metals for example, LiH, KH, CaH2, and BaH2. Other hydrogen compounds are covalent. Group IA and IIA can form peroxide (contain O22- ion ) or superoxide (contain O2- ion). The peroxide and superoxide ions contain atoms that are covalently 30 bonde ...
REDOX EQUILIBRIA SL - chemistryatdulwich
... (b) 2NaCl (aq) + F2 (aq) 2NaF (aq) + CI2 (aq) (c) CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s) (d) Cu(s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag(s) (e) CuO (s) + H2 (g) Cu (s) + H2O (l) (f) 2Fe2+(aq) + I2(aq) 2Fe3+(aq) + 2I-(aq) (g) Sn2+ (aq) + 2Fe3+ (aq) Sn4+ (aq) + 2Fe2+ (aq) (h) 3I2(aq) + 3OH - ...
... (b) 2NaCl (aq) + F2 (aq) 2NaF (aq) + CI2 (aq) (c) CuSO4 (aq) + Zn (s) ZnSO4 (aq) + Cu (s) (d) Cu(s) + 2AgNO3 (aq) → Cu(NO3)2 (aq) + 2Ag(s) (e) CuO (s) + H2 (g) Cu (s) + H2O (l) (f) 2Fe2+(aq) + I2(aq) 2Fe3+(aq) + 2I-(aq) (g) Sn2+ (aq) + 2Fe3+ (aq) Sn4+ (aq) + 2Fe2+ (aq) (h) 3I2(aq) + 3OH - ...
Class XII Chemistry IMPORTANT QUESTIONS and COMMON
... conductivity decreases. In case of semiconductors, with increase of temperature, more electrons can shift from valence band to conduction band. Hence conductivity increases. 4. What type of substances would make better permanent magnets, ferromagnetic or ferromagnetic,Why? AnsFerromagnetic substance ...
... conductivity decreases. In case of semiconductors, with increase of temperature, more electrons can shift from valence band to conduction band. Hence conductivity increases. 4. What type of substances would make better permanent magnets, ferromagnetic or ferromagnetic,Why? AnsFerromagnetic substance ...
File
... Use of the Data Booklet is relevant to this question. Iodine is a black, shiny, non-metallic solid and a member of Group VII. It sublimes easily on heating to give a purple vapour. A sample of iodine vapour of mass 6.35 g has a volume of 1.247 dm3 when maintained at constant temperature and a pressu ...
... Use of the Data Booklet is relevant to this question. Iodine is a black, shiny, non-metallic solid and a member of Group VII. It sublimes easily on heating to give a purple vapour. A sample of iodine vapour of mass 6.35 g has a volume of 1.247 dm3 when maintained at constant temperature and a pressu ...
Assignment 20 ELECTRONIC STRUCTURE OF ATOMS AND IONS I
... eighteen elements, and the sixth period expands even more to include thirty-two elements. A vertical column on the Periodic Table is called a column or group. The Periodic Table contains a total of 18 different columns or groups, within which there are recurrences of chemical characteristics. In ea ...
... eighteen elements, and the sixth period expands even more to include thirty-two elements. A vertical column on the Periodic Table is called a column or group. The Periodic Table contains a total of 18 different columns or groups, within which there are recurrences of chemical characteristics. In ea ...
Chemical Formulas and Chemical Compounds
... 11. Nicotine has the formula CxHyNz. To determine its composition, a sample is burned in excess oxygen, producing the following results: 1.0 mol of CO2 0.70 mol of H2O 0.20 mol of NO2 Assume that all the atoms in nicotine are present as products. a. Determine the number of moles of carbon present in ...
... 11. Nicotine has the formula CxHyNz. To determine its composition, a sample is burned in excess oxygen, producing the following results: 1.0 mol of CO2 0.70 mol of H2O 0.20 mol of NO2 Assume that all the atoms in nicotine are present as products. a. Determine the number of moles of carbon present in ...
Chapter 3 Reading Questions
... 9. For monatomic elements, the molar mass is the numerical value of a. the atomic number expressed in moles/liter b. the atomic mass expressed in moles/kilogram c. the atomic mass expressed in grams/mole d. all of the above are correct answers 10. To determine the molar mass of oxygen, you would a. ...
... 9. For monatomic elements, the molar mass is the numerical value of a. the atomic number expressed in moles/liter b. the atomic mass expressed in moles/kilogram c. the atomic mass expressed in grams/mole d. all of the above are correct answers 10. To determine the molar mass of oxygen, you would a. ...
Chapter 7 Lecture
... into the surroundings it is a ??? reaction and has a + or – enthalpy? • The enthalpy of reaction for the combustion of CH4, the main component in natural gas: ...
... into the surroundings it is a ??? reaction and has a + or – enthalpy? • The enthalpy of reaction for the combustion of CH4, the main component in natural gas: ...
Chapter 3 - WordPress.com
... Composition of the Atomic Nucleus • Except for the nucleus of the simplest type of hydrogen atom, all atomic nuclei are made of protons and neutrons. • A proton has a positive charge equal in magnitude to the negative charge of an electron. • Atoms are electrically neutral because they contain equal ...
... Composition of the Atomic Nucleus • Except for the nucleus of the simplest type of hydrogen atom, all atomic nuclei are made of protons and neutrons. • A proton has a positive charge equal in magnitude to the negative charge of an electron. • Atoms are electrically neutral because they contain equal ...