Unit 12: Electrochemistry
... source to force a nonspontaneous redox reaction to occur. Examples of an electrolytic cell include recharging a battery, electrolytic decomposition of binary compounds, and electroplating of metals. 8. Electroplating: An electrolytic process that involves oxidizing a source metal into a solution usi ...
... source to force a nonspontaneous redox reaction to occur. Examples of an electrolytic cell include recharging a battery, electrolytic decomposition of binary compounds, and electroplating of metals. 8. Electroplating: An electrolytic process that involves oxidizing a source metal into a solution usi ...
Chapter 2 PowerPoint
... • Key to the chemical behavior of an atom lies in the number and arrangement of its electrons in their orbitals • Bohr model – electrons in discrete orbits • Modern physics defines orbital as area around a nucleus where an electron is most likely to be found • No orbital can contain more than two el ...
... • Key to the chemical behavior of an atom lies in the number and arrangement of its electrons in their orbitals • Bohr model – electrons in discrete orbits • Modern physics defines orbital as area around a nucleus where an electron is most likely to be found • No orbital can contain more than two el ...
chapter02_part1_lecture - bloodhounds Incorporated
... periods indicate total number of electron shells ...
... periods indicate total number of electron shells ...
chemistry - cloudfront.net
... Write the complete electron structure for a neutral sodium atom. According to its electron structure, what period of the periodic table should sodium be in? How many valence electrons does it have? What ion will sodium tend to form? What is meant by a noble gas electron configuration? Why are th ...
... Write the complete electron structure for a neutral sodium atom. According to its electron structure, what period of the periodic table should sodium be in? How many valence electrons does it have? What ion will sodium tend to form? What is meant by a noble gas electron configuration? Why are th ...
Section 2 Oxidation Numbers
... the _________ _________ of the compound. • In order to indicate the general distribution of electrons among the bonded atoms in a molecular compound or a polyatomic ion, _________ ________ are assigned to the atoms composing the compound ...
... the _________ _________ of the compound. • In order to indicate the general distribution of electrons among the bonded atoms in a molecular compound or a polyatomic ion, _________ ________ are assigned to the atoms composing the compound ...
Welcome to AP Chemistry!
... 1. The oxidation number of any uncombined element is O. 2. The oxidation number of a monatomic ion equal the charge on the ion. 3. The more electronegative element in a binary compound is assigned the number equal to the charge it would have if it were an ion. 4. The oxidation number of fluorine in ...
... 1. The oxidation number of any uncombined element is O. 2. The oxidation number of a monatomic ion equal the charge on the ion. 3. The more electronegative element in a binary compound is assigned the number equal to the charge it would have if it were an ion. 4. The oxidation number of fluorine in ...
Review for Midyear - 1 KEY - Ms. Robbins` PNHS Science Classes
... when pure, are crystalline salts at room temperature (common examples include NaCl, KI, Fe 2O3); and substances that are liquids and gases at room temperature are usually made of molecules that have covalent bonds (common examples include CO2, N2, CH4, H2O, C8H18) HS-PS1-7. Use mathematical represen ...
... when pure, are crystalline salts at room temperature (common examples include NaCl, KI, Fe 2O3); and substances that are liquids and gases at room temperature are usually made of molecules that have covalent bonds (common examples include CO2, N2, CH4, H2O, C8H18) HS-PS1-7. Use mathematical represen ...
g - Santa Rosa Junior College
... Elements are not equally abundant in all regions – abundances differ due to the differences in physical and chemical behavior of the elements. - The core of the Earth is rich in dense Group 8B(8) to 8B(10) metals. - The Earth’s crust has the largest share of nonmetals, metalloids, and light active m ...
... Elements are not equally abundant in all regions – abundances differ due to the differences in physical and chemical behavior of the elements. - The core of the Earth is rich in dense Group 8B(8) to 8B(10) metals. - The Earth’s crust has the largest share of nonmetals, metalloids, and light active m ...
Chemical Reactions
... 1. Write the word equation for the reaction. water hydrogen + oxygen 2. Write the formula equation. H2O(l) H2(g) + O2(g) 3. Balance the formula equation according to the law of conservation of mass. 4. Double check the number of atoms on each ...
... 1. Write the word equation for the reaction. water hydrogen + oxygen 2. Write the formula equation. H2O(l) H2(g) + O2(g) 3. Balance the formula equation according to the law of conservation of mass. 4. Double check the number of atoms on each ...
Chapter 4 - Reactions in Aqueous Solutions
... Copper wire reacts with silver nitrate to form silver metal. What is the oxidizing agent in the reaction? ...
... Copper wire reacts with silver nitrate to form silver metal. What is the oxidizing agent in the reaction? ...
Thursday, March 27, 2008
... 3. gaining electrons and forming positive ions 4. gaining electrons and forming negative ions ...
... 3. gaining electrons and forming positive ions 4. gaining electrons and forming negative ions ...
H 2 and H 2 + O 2 g H 2 O and H 2 O Hydrogen + Oxygen g Water
... the first one has been done for you. Then can you name the elements or compounds? O2 – 2 Oxygen atoms joined together Cl2 N2 HCl NO2 CO2 CH4 MgO CuO CuSO4 CaCO4 ...
... the first one has been done for you. Then can you name the elements or compounds? O2 – 2 Oxygen atoms joined together Cl2 N2 HCl NO2 CO2 CH4 MgO CuO CuSO4 CaCO4 ...
Irreversible Changes
... materials, such as vinegar and bicarbonate of soda, and burning are all chemical reactions. As children experience these activities it is worth discussing this with them as an on-going idea so that they begin to develop and build on the concept. In a chemical change, the bonds between the particles ...
... materials, such as vinegar and bicarbonate of soda, and burning are all chemical reactions. As children experience these activities it is worth discussing this with them as an on-going idea so that they begin to develop and build on the concept. In a chemical change, the bonds between the particles ...
ch22 lecture 7e
... Elements are not equally abundant in all regions – abundances differ due to the differences in physical and chemical behavior of the elements. - The core of the Earth is rich in dense Group 8B(8) to 8B(10) metals. - The Earth’s crust has the largest share of nonmetals, metalloids, and light, active ...
... Elements are not equally abundant in all regions – abundances differ due to the differences in physical and chemical behavior of the elements. - The core of the Earth is rich in dense Group 8B(8) to 8B(10) metals. - The Earth’s crust has the largest share of nonmetals, metalloids, and light, active ...
Atoms, Molecules, and Ions C Kapler ` , , I 27 O//#W SELF
... d. gained electrons e. gained protons ...
... d. gained electrons e. gained protons ...
Redox
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.