writing chemical equations
... molecular equation for the reaction. Although this equation shows the reactants and products of the reaction, it does not give a very clear picture of what truly occurs in solution. In fact, such an aqueous solution actually contains individual IONS, not molecules, in solution. By looking at the afo ...
... molecular equation for the reaction. Although this equation shows the reactants and products of the reaction, it does not give a very clear picture of what truly occurs in solution. In fact, such an aqueous solution actually contains individual IONS, not molecules, in solution. By looking at the afo ...
Unit 12: Electrochemistry
... 13. Reducing Agent: The species that was oxidized and therefore gives electrons to the species that was reduced. 14. Salt Bridge: A semi-permeable barrier that allows the flow of ions from one half-cell to another half-cell, but prevents the direct mixing of the ions. 15. Species: The symbol and cha ...
... 13. Reducing Agent: The species that was oxidized and therefore gives electrons to the species that was reduced. 14. Salt Bridge: A semi-permeable barrier that allows the flow of ions from one half-cell to another half-cell, but prevents the direct mixing of the ions. 15. Species: The symbol and cha ...
ionization energies
... • The simplest reactions are those between metals and nonmetals. The product of such a reaction is an ionic compound • Lets consider the reaction between sodium metal and chlorine gas ...
... • The simplest reactions are those between metals and nonmetals. The product of such a reaction is an ionic compound • Lets consider the reaction between sodium metal and chlorine gas ...
Stoichiometry
... AX + BZ AZ + BX These reactions proceed if one of the ff. is satisfied: 1. An insoluble/slightly soluble product is formed (PRECIPITATE formation) 2. A weakly ionized species is produced. The most common species of this type is water. 3. A gas is produced as a product. ...
... AX + BZ AZ + BX These reactions proceed if one of the ff. is satisfied: 1. An insoluble/slightly soluble product is formed (PRECIPITATE formation) 2. A weakly ionized species is produced. The most common species of this type is water. 3. A gas is produced as a product. ...
CHAPTER 2: THE ATOMS AND MOLECULES OF ANCIENT EARTH
... b. Reduction of CO2 by H2 forms H2CO, which is used as a building block to form organic compounds (compounds containing at least one C–C bond). (Fig. 2.13) B. For carbon to be reduced, early atmosphere must have contained CH 4, H2, and NH3 (molecules that can give up electrons). 1. Volcanic ash is k ...
... b. Reduction of CO2 by H2 forms H2CO, which is used as a building block to form organic compounds (compounds containing at least one C–C bond). (Fig. 2.13) B. For carbon to be reduced, early atmosphere must have contained CH 4, H2, and NH3 (molecules that can give up electrons). 1. Volcanic ash is k ...
File - Mr. J`s Chemistry 4U
... B- A type of chemical reaction in which a single compound undergoes a reaction that produces two or more simpler substances. C- A type of chemical reaction in which one element replaces a similar element in a compound. D- A type of chemical reaction in which the ions of two compounds exchange places ...
... B- A type of chemical reaction in which a single compound undergoes a reaction that produces two or more simpler substances. C- A type of chemical reaction in which one element replaces a similar element in a compound. D- A type of chemical reaction in which the ions of two compounds exchange places ...
2011 Lecture 22: Transport in Bulk Electrolytes
... where ~u is the fluid velocity, which transports ions by convection leading to a flux density ~uci , and Ri is the the bulk production rate of species i by reactions. The latter is usually neglected in electrolytes, but it can be important for aqueous solutions far from equilibrium, due to the water ...
... where ~u is the fluid velocity, which transports ions by convection leading to a flux density ~uci , and Ri is the the bulk production rate of species i by reactions. The latter is usually neglected in electrolytes, but it can be important for aqueous solutions far from equilibrium, due to the water ...
Unit5C - OCCC.edu
... • the chemical species becomes more negatively charged – the gain of hydrogen – the loss of oxygen ...
... • the chemical species becomes more negatively charged – the gain of hydrogen – the loss of oxygen ...
Honors Chemistry - Stout Middle School
... 5. Be able to predict the ratio of positive and negative ions that come together to form an ionic compound (which is neutral in charge). 6. Know why transition elements can have more than one oxidation number. 7. Know the four elements, outside groups 1 and 2, that have only one oxidation number and ...
... 5. Be able to predict the ratio of positive and negative ions that come together to form an ionic compound (which is neutral in charge). 6. Know why transition elements can have more than one oxidation number. 7. Know the four elements, outside groups 1 and 2, that have only one oxidation number and ...
2012 Coaches Institute Presentation
... The percentage of acid molecules that ionize in water is another measure of the strength of an acid % Ionization = M(ionized acid) x ...
... The percentage of acid molecules that ionize in water is another measure of the strength of an acid % Ionization = M(ionized acid) x ...
Thursday, March 27, 2008
... A mixture of crystals of salt and sugar is added to water and stirred until all solids have dissolved. Which statement best describes the resulting mixture? 1. The mixture is homogeneous and can be separated by 3. The mixture is heterogeneous and can be separated by ...
... A mixture of crystals of salt and sugar is added to water and stirred until all solids have dissolved. Which statement best describes the resulting mixture? 1. The mixture is homogeneous and can be separated by 3. The mixture is heterogeneous and can be separated by ...
Final Preparation
... 93. The backbone of a nucleic acid strand consists of: A) alternating nitrogen bases and phosphate groups linked by amide bonds B) alternating sugar and nitrogen bases liked by peptide bonds C) alternating sugar and phosphate groups linked by phosphate ester bonds D) complimentary bases held togethe ...
... 93. The backbone of a nucleic acid strand consists of: A) alternating nitrogen bases and phosphate groups linked by amide bonds B) alternating sugar and nitrogen bases liked by peptide bonds C) alternating sugar and phosphate groups linked by phosphate ester bonds D) complimentary bases held togethe ...
Exam 2 Fall 2005 Chemsitry 1211
... In the late eighteenth century Priestley prepared ammonia by reacting nitric acid with hydrogen gas. The thermodynamic equation for the reaction is HNO3 (l) + 4H2 (g) NH3 (g) + 3H2O (l) It is determined that 637 kJ of energy is evolved during this process. ...
... In the late eighteenth century Priestley prepared ammonia by reacting nitric acid with hydrogen gas. The thermodynamic equation for the reaction is HNO3 (l) + 4H2 (g) NH3 (g) + 3H2O (l) It is determined that 637 kJ of energy is evolved during this process. ...
Review Packet
... _____ 51. A reaction that releases heat. _____ 52. A reaction that absorbs heat. _____ 53. A whole number that appears before a formula in an equation. _____ 54. A starting substance in a chemical reaction. _____ 55. A new substance formed in a chemical reaction. _____ 56. Equation obey the laws of ...
... _____ 51. A reaction that releases heat. _____ 52. A reaction that absorbs heat. _____ 53. A whole number that appears before a formula in an equation. _____ 54. A starting substance in a chemical reaction. _____ 55. A new substance formed in a chemical reaction. _____ 56. Equation obey the laws of ...
Redox Introduction
... In burning, oxygen unites rapidly with carbon to form CO2. Observation of these reactions gave rise to the terms "slow" and "rapid" oxidation. Chemists recognize, however, that other nonmetallic elements unite with substances in a manner similar to that of oxygen. – Hydrogen, antimony, and sodium al ...
... In burning, oxygen unites rapidly with carbon to form CO2. Observation of these reactions gave rise to the terms "slow" and "rapid" oxidation. Chemists recognize, however, that other nonmetallic elements unite with substances in a manner similar to that of oxygen. – Hydrogen, antimony, and sodium al ...
+ 2 O 2 - SandersScienceStuff
... Determining States of Matter • Most diatomics are gases at room temperature (bromine is liquid and iodine is solid) • For products that are ionic compounds in water: use the solubility rules on the back of your periodic table to determine the state of matter. Insoluble ...
... Determining States of Matter • Most diatomics are gases at room temperature (bromine is liquid and iodine is solid) • For products that are ionic compounds in water: use the solubility rules on the back of your periodic table to determine the state of matter. Insoluble ...
Chapter 8
... 3. When a nonmetal oxide reacts with water, it will produce an Acid. (Start with the H and end with the O) Example: Sulfur dioxide gas reacts with water 4. When a metal oxide reacts with water, it will produce a Base. (start with the metal and end with hydroxide, OH-) Example: Sodium oxide reacts wi ...
... 3. When a nonmetal oxide reacts with water, it will produce an Acid. (Start with the H and end with the O) Example: Sulfur dioxide gas reacts with water 4. When a metal oxide reacts with water, it will produce a Base. (start with the metal and end with hydroxide, OH-) Example: Sodium oxide reacts wi ...
Electrochemistry
Electrochemistry is the branch of physical chemistry that studies chemical reactions which take place at the interface of an electrode, usually a solid metal or a semiconductor, and an ionic conductor, the electrolyte. These reactions involve electric charges moving between the electrodes and the electrolyte (or ionic species in a solution). Thus electrochemistry deals with the interaction between electrical energy and chemical change.When a chemical reaction is caused by an externally supplied current, as in electrolysis, or if an electric current is produced by a spontaneous chemical reaction as in a battery, it is called an electrochemical reaction. Chemical reactions where electrons are transferred directly between molecules and/or atoms are called oxidation-reduction or (redox) reactions. In general, electrochemistry describes the overall reactions when individual redox reactions are separate but connected by an external electric circuit and an intervening electrolyte.