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Lecture 4
... 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? ...
Honors Chemistry Exam Review Questions
... 5. A metal has a mass of 88.4 grams and an initial temperature of 106.2oC. The heated metal is then placed into 25.9 grams of water with an initial temperature of 23.4oC. The final temperature of the metal and the water is 26.7oC. What is the specific heat of the metal, assuming that all of the heat ...
... 5. A metal has a mass of 88.4 grams and an initial temperature of 106.2oC. The heated metal is then placed into 25.9 grams of water with an initial temperature of 23.4oC. The final temperature of the metal and the water is 26.7oC. What is the specific heat of the metal, assuming that all of the heat ...
Chapter 3 Chemical Reactions
... 1. Write the equation using the formulas of the reactants and products. Include the physical states (s, l, g, aq etc…) 2. Balance the compound with the most elements in the formula first using integers as coefficients. 3. Balance elements on their own last. 4. Check to see that the sum of each indiv ...
... 1. Write the equation using the formulas of the reactants and products. Include the physical states (s, l, g, aq etc…) 2. Balance the compound with the most elements in the formula first using integers as coefficients. 3. Balance elements on their own last. 4. Check to see that the sum of each indiv ...
08_lecture_ppt - Chemistry at Winthrop University
... 1. All matter = indivisible atoms 2. An element is made up of identical atoms. 3. Different elements have atoms with different masses. 4. Chemical compounds are made of atoms in specific integer ratios. 5. Atoms are neither created nor destroyed in chemical reactions. ...
... 1. All matter = indivisible atoms 2. An element is made up of identical atoms. 3. Different elements have atoms with different masses. 4. Chemical compounds are made of atoms in specific integer ratios. 5. Atoms are neither created nor destroyed in chemical reactions. ...
Chemical Equations and Reactions
... 2 NaOH Na2O + H2O 4 Fe + 3O2 2 Fe2O3 6 CO2 + 6 H2O C6H12O6 + 6 O2 ...
... 2 NaOH Na2O + H2O 4 Fe + 3O2 2 Fe2O3 6 CO2 + 6 H2O C6H12O6 + 6 O2 ...
Chapter 2 Notes
... 2. compounds- when 2 or more substances combine chemically; has properties different from the properties of each of the elements in it; example: water (H2O) 3. chemical properties = describe how one substance changes when it reacts with other substances; example: iron changes to rust when it reacts ...
... 2. compounds- when 2 or more substances combine chemically; has properties different from the properties of each of the elements in it; example: water (H2O) 3. chemical properties = describe how one substance changes when it reacts with other substances; example: iron changes to rust when it reacts ...
Objective 3 Stations Student Sheet
... 1. How is the periodic table organized? 2. What family of elements has valence electrons at two energy levels? 3. What are the elements called that are between metals and nonmetals? 4. Which family of nonmetals has seven valence electrons? 5. What are some properties of noble gases? 6. What is anoth ...
... 1. How is the periodic table organized? 2. What family of elements has valence electrons at two energy levels? 3. What are the elements called that are between metals and nonmetals? 4. Which family of nonmetals has seven valence electrons? 5. What are some properties of noble gases? 6. What is anoth ...
Test Booklet
... B They will form covalent bonds with oxygen. C They have the same electron configuration as argon. ...
... B They will form covalent bonds with oxygen. C They have the same electron configuration as argon. ...
Double-Replacement Reactions - Fort Thomas Independent Schools
... a. Solid sodium combines with chlorine gas to produce solid sodium chloride. b. When solid copper reacts with aqueous silver nitrate, the products are aqueous copper (II) nitrate and solid silver c. In a blast furnace, the reaction between solid iron (III) oxide and carbon monoxide gas produces soli ...
... a. Solid sodium combines with chlorine gas to produce solid sodium chloride. b. When solid copper reacts with aqueous silver nitrate, the products are aqueous copper (II) nitrate and solid silver c. In a blast furnace, the reaction between solid iron (III) oxide and carbon monoxide gas produces soli ...
lecture slides of chap8
... the reduced electron repulsion resulting from removal of electrons make the electron clouds shrink. Anion is always larger than atom from which it is formed. This is because the nuclear charge remains the same but electron repulsion resulting from the additional electron enlarges the electron clouds ...
... the reduced electron repulsion resulting from removal of electrons make the electron clouds shrink. Anion is always larger than atom from which it is formed. This is because the nuclear charge remains the same but electron repulsion resulting from the additional electron enlarges the electron clouds ...
Ground State
... Pieter Zeeman, Lorentz “spectra line splitting” in magnetic filed 1902 Nobel Prize ...
... Pieter Zeeman, Lorentz “spectra line splitting” in magnetic filed 1902 Nobel Prize ...
e c n i
... a. Subscript numbers designate how many atoms of each element are present: H2O2 ; 2 Hydrogen atoms and 2 Oxygen atoms are present in this molecule b. W hen no subscript number is shown: it is understood that there is only one atom present: H2O = 2 Hydrogen atoms and only one Oxygen atom are present ...
... a. Subscript numbers designate how many atoms of each element are present: H2O2 ; 2 Hydrogen atoms and 2 Oxygen atoms are present in this molecule b. W hen no subscript number is shown: it is understood that there is only one atom present: H2O = 2 Hydrogen atoms and only one Oxygen atom are present ...
MIDTERM EXAM – JANUARY, 2003
... 75. The transition metals occupy the ______________ block of the periodic table 76. The alkali metals and alkaline earth metals occupy the ______________ block of the periodic table 77. The name of the group which contains fluorine, chlorine, bromine, iodine, and astatine is 78. When they react chem ...
... 75. The transition metals occupy the ______________ block of the periodic table 76. The alkali metals and alkaline earth metals occupy the ______________ block of the periodic table 77. The name of the group which contains fluorine, chlorine, bromine, iodine, and astatine is 78. When they react chem ...
Chemistry Final - Practice Test I
... What was the contribution to chemistry by each of these individuals? Neils Bohr Developed the Planetary Model of the atom based on Quantum energy levels Henry Moseley Arranged the Periodic Table – Increasing atomic number using x-rays and wavelengths Rutherford Discovered that most of the atoms mass ...
... What was the contribution to chemistry by each of these individuals? Neils Bohr Developed the Planetary Model of the atom based on Quantum energy levels Henry Moseley Arranged the Periodic Table – Increasing atomic number using x-rays and wavelengths Rutherford Discovered that most of the atoms mass ...
Chemistry Curriculum Guide
... from a neutral atom. Elements with low ionization energy form positive ions (cations) easily. Elements with high ionization energy form negative ions (anions) easily. ...
... from a neutral atom. Elements with low ionization energy form positive ions (cations) easily. Elements with high ionization energy form negative ions (anions) easily. ...
Physical Science
... another substance ie. Water evaporates into water vapor, a rock is broken into pieces It’s like printing a word in a different font, it’s the same word just looks different! ...
... another substance ie. Water evaporates into water vapor, a rock is broken into pieces It’s like printing a word in a different font, it’s the same word just looks different! ...
Chemical Reactions: Introduction to Reaction Types
... elements, b) 1 element and 1 binary compound (consisting of 2 elements), or c) 2 binary compounds. The following are examples of combination reactions: The rusting of iron: 4Fe (s) + 3O2 (g) → 2Fe2O3 (s) The formation of one kind of acid rain: SO3 (g) + H2O (l) → H2SO4 (aq) 2. Decomposition: AB → A ...
... elements, b) 1 element and 1 binary compound (consisting of 2 elements), or c) 2 binary compounds. The following are examples of combination reactions: The rusting of iron: 4Fe (s) + 3O2 (g) → 2Fe2O3 (s) The formation of one kind of acid rain: SO3 (g) + H2O (l) → H2SO4 (aq) 2. Decomposition: AB → A ...
Atomic Theory Practice Test
... ____ 18. The electrons involved in the formation of a chemical bond are called a. dipoles. c. Lewis electrons. b. s electrons. d. valence electrons. ____ 19. In a chemical bond, the link between atoms results from the attraction between electrons and a. Lewis structures. c. van der Waals forces. b. ...
... ____ 18. The electrons involved in the formation of a chemical bond are called a. dipoles. c. Lewis electrons. b. s electrons. d. valence electrons. ____ 19. In a chemical bond, the link between atoms results from the attraction between electrons and a. Lewis structures. c. van der Waals forces. b. ...
Periodic Table, Bonding, Reactions, and Moles
... 8. Explain, in terms of valence electrons, why the bonding in magnesium oxide, MgO, is similar to the bonding in barium chloride, BaCl2. 9. Identify the type of bonding between the atoms in an oxygen molecule. ...
... 8. Explain, in terms of valence electrons, why the bonding in magnesium oxide, MgO, is similar to the bonding in barium chloride, BaCl2. 9. Identify the type of bonding between the atoms in an oxygen molecule. ...
Redox
![](https://commons.wikimedia.org/wiki/Special:FilePath/NaF.gif?width=300)
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.