08_Lecture - HCC Learning Web
... • A few metals are active enough to react directly with water. These are called active metals. • The active metals are Li, Na, K, Rb, Cs, Ca, Sr, and Ba. • They react with water to produce a metal hydroxide and hydrogen gas. 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) Ca(s) + 2 H2O(l) → Ca(OH)2(aq) + H2 ...
... • A few metals are active enough to react directly with water. These are called active metals. • The active metals are Li, Na, K, Rb, Cs, Ca, Sr, and Ba. • They react with water to produce a metal hydroxide and hydrogen gas. 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) Ca(s) + 2 H2O(l) → Ca(OH)2(aq) + H2 ...
Voltaic Cells - Ms. Mogck`s Classroom
... • A device that is used to measure the energy difference between any 2 points in an electric circuit • Energy is measured in VOLTS (V) ...
... • A device that is used to measure the energy difference between any 2 points in an electric circuit • Energy is measured in VOLTS (V) ...
Chemical Equations
... For example, in the equation describing the formation of liquid water from hydrogen gas and oxygen gas 2 H2(g) + O2(g) → 2 H2O(l) There are four hydrogen atoms on both the left and right sides of the equation There are two oxygen atoms on both the left and right sides of the equation Therefo ...
... For example, in the equation describing the formation of liquid water from hydrogen gas and oxygen gas 2 H2(g) + O2(g) → 2 H2O(l) There are four hydrogen atoms on both the left and right sides of the equation There are two oxygen atoms on both the left and right sides of the equation Therefo ...
ChLM Final Review Name: Period: Base Knowledge 1. Classify the
... 9. For generic element “X”, define what goes in each location in the symbol (hint: remember these are all whole numbers). ...
... 9. For generic element “X”, define what goes in each location in the symbol (hint: remember these are all whole numbers). ...
L14
... L14. Entropy and Heat Engines Entropy is a completely non-sensible concept at the core of thermodynamics. By nonsensible, I mean it isn’t something that we directly observe about an object, like its temperature, conductivity, or heat capacity. However, every system in complete thermodynamic equilibr ...
... L14. Entropy and Heat Engines Entropy is a completely non-sensible concept at the core of thermodynamics. By nonsensible, I mean it isn’t something that we directly observe about an object, like its temperature, conductivity, or heat capacity. However, every system in complete thermodynamic equilibr ...
Lecture 7. Fundamentals of atmospheric chemistry: Part 2 1
... These terms are sometimes confusing since the reduction process involves adding an electron. Keep in mind it's the charge that's being reduced in this case. Oxidation receives its name because almost all reactions with oxygen involve some other element losing electrons to the oxygen. Only fluorine w ...
... These terms are sometimes confusing since the reduction process involves adding an electron. Keep in mind it's the charge that's being reduced in this case. Oxidation receives its name because almost all reactions with oxygen involve some other element losing electrons to the oxygen. Only fluorine w ...
Chemistry
... 27. __________________ – tentative explanation for an observation 28. __________________ – a set of controlled observations that test the hypothesis 29. _______________ – a quantity or condition that can have more than one value 30. Only ________________ variable can be tested at a time 31. _______ ...
... 27. __________________ – tentative explanation for an observation 28. __________________ – a set of controlled observations that test the hypothesis 29. _______________ – a quantity or condition that can have more than one value 30. Only ________________ variable can be tested at a time 31. _______ ...
Unit 2
... 45. The atomic radius generally increases with atomic number in a particular group of elements. The dominant factor that determines this variation is the _____ A. addition of energy levels. B. increase in the number of neutrons. C. formation of anew octet. D. increase in nuclear charge. 46. One-half ...
... 45. The atomic radius generally increases with atomic number in a particular group of elements. The dominant factor that determines this variation is the _____ A. addition of energy levels. B. increase in the number of neutrons. C. formation of anew octet. D. increase in nuclear charge. 46. One-half ...
THERMODYNAMICS
... Entropy is the thermodynamic quantity that is a measure of the randomness or disorder in a system. Entropy is a state function: - the quantity of entropy in a substance depends only on variables that determine the state of the substance (temperature and pressure) Entropy is measured in J/K (SI unit) ...
... Entropy is the thermodynamic quantity that is a measure of the randomness or disorder in a system. Entropy is a state function: - the quantity of entropy in a substance depends only on variables that determine the state of the substance (temperature and pressure) Entropy is measured in J/K (SI unit) ...
All you need to know about Additional Science
... 2NaOH + Cl2 NaOCl + NaCl + H2O If we have a solution containing 100 g of sodium hydroxide, how much chlorine gas should we pass through the solution to make bleach? Too much, and some chlorine will be wasted, too little and not all of the sodium hydroxide will react. ...
... 2NaOH + Cl2 NaOCl + NaCl + H2O If we have a solution containing 100 g of sodium hydroxide, how much chlorine gas should we pass through the solution to make bleach? Too much, and some chlorine will be wasted, too little and not all of the sodium hydroxide will react. ...
Chap 5 lecture notes - Michigan State University
... system is independent of the path by which the system achieved that state. In the system below, the water could have reached room temperature from either direction. ...
... system is independent of the path by which the system achieved that state. In the system below, the water could have reached room temperature from either direction. ...
Turbomachinery
... Review of Thermodynamics • Extensive variables – depend on total mass of the system, e.g. M, E, S, V • Intensive variables – do not depend on total mass of the system, e.g. p, T, s, (1/v) • Equilibrium (state of maximum disorder) – bodies that are at the same temperature are called in thermal equ ...
... Review of Thermodynamics • Extensive variables – depend on total mass of the system, e.g. M, E, S, V • Intensive variables – do not depend on total mass of the system, e.g. p, T, s, (1/v) • Equilibrium (state of maximum disorder) – bodies that are at the same temperature are called in thermal equ ...
Chapter 5 Thermochemistry
... are not state functions. • Whether the battery is shorted out or is discharged by running the fan, its E is the same. – But q and w are different in the two cases. ...
... are not state functions. • Whether the battery is shorted out or is discharged by running the fan, its E is the same. – But q and w are different in the two cases. ...
Unit 2 Review Questions Fill in the blank In a(n) change, a new
... are shiny, malleable, and conduct electricity. i. The is the number of protons in an atom. j. An electrically charged atom is a(n) ...
... are shiny, malleable, and conduct electricity. i. The is the number of protons in an atom. j. An electrically charged atom is a(n) ...
Chem 11, Notes – Unit 3 – Properties of Matter
... Physical Properties of Matter What is the difference between a physical and chemical property? • A physical property of a pure substance is anything that can be observed without changing the identity of the substance o An intensive physical property depends upon the nature of the substance o An exte ...
... Physical Properties of Matter What is the difference between a physical and chemical property? • A physical property of a pure substance is anything that can be observed without changing the identity of the substance o An intensive physical property depends upon the nature of the substance o An exte ...
Chapter 1: Matter, Measurement and Problem Solving
... Molecules have a lot of space between them Free to move Compressible: forcing gas into a small container No fixed volume: volume of the container No fixed shape: take the shape of container Examples: Helium and Nitrogen ...
... Molecules have a lot of space between them Free to move Compressible: forcing gas into a small container No fixed volume: volume of the container No fixed shape: take the shape of container Examples: Helium and Nitrogen ...
Chapter 2
... States of Matter are Physically Different. • Gas is free to spread in all directions. • Gas can exert pressure • Solids have rigid structure. • Liquids take the shape of the container. • Energy is the key! ...
... States of Matter are Physically Different. • Gas is free to spread in all directions. • Gas can exert pressure • Solids have rigid structure. • Liquids take the shape of the container. • Energy is the key! ...
Higher Chemistry Learning Outcomes
... (i) Patterns in the Periodic Table. The modern Periodic Table is based on the work of Mendeleev who arranged the known elements in order of increasing atomic masses in conjunction with similar chemical properties, leaving gaps for undiscovered elements. There are variations in the densities, mel ...
... (i) Patterns in the Periodic Table. The modern Periodic Table is based on the work of Mendeleev who arranged the known elements in order of increasing atomic masses in conjunction with similar chemical properties, leaving gaps for undiscovered elements. There are variations in the densities, mel ...
Chemical thermodynamics
Chemical thermodynamics is the study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics. Chemical thermodynamics involves not only laboratory measurements of various thermodynamic properties, but also the application of mathematical methods to the study of chemical questions and the spontaneity of processes.The structure of chemical thermodynamics is based on the first two laws of thermodynamics. Starting from the first and second laws of thermodynamics, four equations called the ""fundamental equations of Gibbs"" can be derived. From these four, a multitude of equations, relating the thermodynamic properties of the thermodynamic system can be derived using relatively simple mathematics. This outlines the mathematical framework of chemical thermodynamics.