Unit 5 Practice Problems (with answers at end) - H
... 7. To produce the original "water gas" mixture, carbon (in a combustible form known as coke) is reacted with steam: ...
... 7. To produce the original "water gas" mixture, carbon (in a combustible form known as coke) is reacted with steam: ...
eastern illinois university
... 22. Consider the following unbalanced equation: LaCl3 + Na2CO3 La2(CO3)3 + NaCl. When this equation is balanced (simplest whole number coefficients), the coefficient for NaCl is: a. 1 b. 2 c. 3 d. 5 e. 6 23. Consider the balanced, but incomplete, equation: 2AlCl3 + Ca3N22X + 3CaCl2. The formula o ...
... 22. Consider the following unbalanced equation: LaCl3 + Na2CO3 La2(CO3)3 + NaCl. When this equation is balanced (simplest whole number coefficients), the coefficient for NaCl is: a. 1 b. 2 c. 3 d. 5 e. 6 23. Consider the balanced, but incomplete, equation: 2AlCl3 + Ca3N22X + 3CaCl2. The formula o ...
Just a Few Things 2012
... Heat is the amount of total molecular kinetic energy. Objects with the same temperature but different mass or heat capacity have different amounts of total energy. ...
... Heat is the amount of total molecular kinetic energy. Objects with the same temperature but different mass or heat capacity have different amounts of total energy. ...
SOFCs. Electrolytes
... Solid Oxide Fuel Cells (SOFCs). Principles The basic reaction in SOFC is: ...
... Solid Oxide Fuel Cells (SOFCs). Principles The basic reaction in SOFC is: ...
Chemistry
... C. Review : Complete the following word equations (if needed), state what type of reaction they are and then rewrite the equation as a balanced chemical equation.(See activity series on p. 217 for single replacement reactions involving metals). ...
... C. Review : Complete the following word equations (if needed), state what type of reaction they are and then rewrite the equation as a balanced chemical equation.(See activity series on p. 217 for single replacement reactions involving metals). ...
Chemistry
... The Examination consists of one three-hour paper. The paper will be divided into three sections: Section A will contain between eight and ten compulsory questions of the fill-in type requiring short answers; Section B will consist of between four and sixcompulsory structured questions; Section C wil ...
... The Examination consists of one three-hour paper. The paper will be divided into three sections: Section A will contain between eight and ten compulsory questions of the fill-in type requiring short answers; Section B will consist of between four and sixcompulsory structured questions; Section C wil ...
study guide first semester chemistry
... 6. Write the formula for hydrosulfuric acid. H2S Chapter 8 Molecular Shape Summary ...
... 6. Write the formula for hydrosulfuric acid. H2S Chapter 8 Molecular Shape Summary ...
3_2: More Chemical Changes
... combined they produce an aqueous solution of sodium chloride and calcium carbonate along with carbon dioxide, water, and heat. 2NaHCO3(aq) + CaCl2(aq) 2NaCl(aq) + CaCO3(s) + H2O(l) + CO2(g) REACTANTS ...
... combined they produce an aqueous solution of sodium chloride and calcium carbonate along with carbon dioxide, water, and heat. 2NaHCO3(aq) + CaCl2(aq) 2NaCl(aq) + CaCO3(s) + H2O(l) + CO2(g) REACTANTS ...
Revision topic 1-3
... • The mass of an atom depends on the number of protons and neutrons in the nucleus (the mass of electrons is so small that it can be ignored in chemistry). • The relative atomic mass is a weighted average mass (according to relative abundances) of all the naturally occuring isotopes of an element co ...
... • The mass of an atom depends on the number of protons and neutrons in the nucleus (the mass of electrons is so small that it can be ignored in chemistry). • The relative atomic mass is a weighted average mass (according to relative abundances) of all the naturally occuring isotopes of an element co ...
AP_chemical reaction and quantities
... • In addition to changes in chemical composition, all chemical reactions are also accompanied by changes in energy. That is, all reactions either absorb or give up energy as they proceed. • The energy involved in chemical reactions can take numerous forms such as the electrical energy released by ...
... • In addition to changes in chemical composition, all chemical reactions are also accompanied by changes in energy. That is, all reactions either absorb or give up energy as they proceed. • The energy involved in chemical reactions can take numerous forms such as the electrical energy released by ...
CHEMISTRY IM 06 SYLLABUS 1
... The Examination consists of one three-hour paper. The paper will be divided into three sections: Section A will contain between eight and ten compulsory questions of the fill-in type requiring short answers; Section B will consist of between four and sixcompulsory structured questions; Section C wil ...
... The Examination consists of one three-hour paper. The paper will be divided into three sections: Section A will contain between eight and ten compulsory questions of the fill-in type requiring short answers; Section B will consist of between four and sixcompulsory structured questions; Section C wil ...
Study Guide for Test 2: Chapters 3 & 4... This is NOT a complete list of what will be... Revised March 4, 2014
... 28) Understand titration experiment including equivalence point, color indicator, and color endpoint. Be able to do titration calculations. 29) Identify, predict and write Gas Forming Reactions. See Table 4.3 in textbook. (Gas forming reaction with NH4OH is not on test.) 30) Identify an Oxidation-Re ...
... 28) Understand titration experiment including equivalence point, color indicator, and color endpoint. Be able to do titration calculations. 29) Identify, predict and write Gas Forming Reactions. See Table 4.3 in textbook. (Gas forming reaction with NH4OH is not on test.) 30) Identify an Oxidation-Re ...
Classifying Chemical Reactions by What Atoms Do
... The titration of 10.00 mL of HCl solution of unknown concentration requires 12.54 mL of 0.100 M NaOH solution to reach the end point. What is the concentration of the unknown HCl solution? ...
... The titration of 10.00 mL of HCl solution of unknown concentration requires 12.54 mL of 0.100 M NaOH solution to reach the end point. What is the concentration of the unknown HCl solution? ...
Chemistry MSL Practical Style Review 1. What is the nuclear
... 10. What type of bonding is associated with compounds that have the following characteristics: •high melting points •conduct electricity in the molten state •solutions conduct electricity •normally crystalline solids at room temperature. A B C D ...
... 10. What type of bonding is associated with compounds that have the following characteristics: •high melting points •conduct electricity in the molten state •solutions conduct electricity •normally crystalline solids at room temperature. A B C D ...
Final Exam Review
... observed change happens 123. use the drawings to explain how gas pressure is produced. ...
... observed change happens 123. use the drawings to explain how gas pressure is produced. ...
CHEM%1212K% Final%Exam% Summer%2011% K
... 13.% 100%mL%of%each%of%the%following%solutions%is%mixed.%%Which%one%of%the%mixed% solutions%is%a%buffer?%% A)% 1.0%M%CH3NH2(aq)%+%0.6%M%KOH(aq)%% B)% 1.0%M%CH3NH3Cl(aq)%+%1.0%M%KOH(aq)%% C)% 1.0%M%CH3NH2(%(aq)%+%0.8%M%HNO3(aq)%% D)% 1.0%M%NH4Cl(aq)%+%0.8%M%HCl(aq)%% E)% 2.0%M%CH3NH2(%(aq)%+%2.2%M%HN ...
... 13.% 100%mL%of%each%of%the%following%solutions%is%mixed.%%Which%one%of%the%mixed% solutions%is%a%buffer?%% A)% 1.0%M%CH3NH2(aq)%+%0.6%M%KOH(aq)%% B)% 1.0%M%CH3NH3Cl(aq)%+%1.0%M%KOH(aq)%% C)% 1.0%M%CH3NH2(%(aq)%+%0.8%M%HNO3(aq)%% D)% 1.0%M%NH4Cl(aq)%+%0.8%M%HCl(aq)%% E)% 2.0%M%CH3NH2(%(aq)%+%2.2%M%HN ...
File
... Electricity and Magnetism – how are they related? When an electric current passes through a wire a magnetic field is formed. ...
... Electricity and Magnetism – how are they related? When an electric current passes through a wire a magnetic field is formed. ...
Electricity and Magnetism - Warren County Public Schools
... Electricity and Magnetism – how are they related? When an electric current passes through a wire a magnetic field is formed. ...
... Electricity and Magnetism – how are they related? When an electric current passes through a wire a magnetic field is formed. ...
Electricity and Magnetism
... Electricity and Magnetism – how are they related? When an electric current passes through a wire a magnetic field is formed. ...
... Electricity and Magnetism – how are they related? When an electric current passes through a wire a magnetic field is formed. ...
Chapter 7. CHEMICAL REACTIONS
... reaction, unchanged by the chemical process. These ions are called spectator ions and are best left out of the balanced equation. When spectator ions are left out of an equation an ionic equation results. Ionic equations are the best representation of the chemical reaction, since they show only thos ...
... reaction, unchanged by the chemical process. These ions are called spectator ions and are best left out of the balanced equation. When spectator ions are left out of an equation an ionic equation results. Ionic equations are the best representation of the chemical reaction, since they show only thos ...
Chapter 2
... • 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 ...
... • 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 ...
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.