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TOPIC 5 ENERGETICS/THERMOCHEMISTRY

TOPIC 5 ENERGETICS/THERMOCHEMISTRY

TOPIC 5 ENERGETICS/THERMOCHEMISTRY. 5.3 BOND ENTHALPIES. ESSENTIAL IDEA. Energy is absorbed when bonds are broken and is released when bonds are formed. NATURE OF SCIENCE (2.2)

By elina
(282 views)

Balancing Equations

Balancing Equations

Balancing Equations. Chapter 6. What is balancing an equation?. Balancing an equation is changing the ratios of molecules/atoms to make the lowest possible same whole number and type of atoms on each side of the equation. Na + Cl 2  NaCl. 2. 2.

By albert
(419 views)

ELECTROCHEMISTRY AS

ELECTROCHEMISTRY AS

ELECTROCHEMISTRY AS. Redox reactions Oxidation : loses electrons/oxidation number increases /loses hydrogen/accepts oxygen Reduction : accepts electrons/oxidation number decreases /accepts hydrogen/loses oxygen Calculation of oxidation numbers. APPLICATIONS OF ELECTROLYSIS

By Patman
(496 views)

Nitroglycerine

Nitroglycerine

1mol Nitro 227 g Nitro. 29 mol gas 4mol Nitro. Nitroglycerine. 100 g Nitro. = 3.193 mol gas. Or = .110 mol O 2 = .661 mol N 2 = 1.10 mol H 2 O = 1.32 mole CO 2. 1atm. Nitroglycerine. V = nRT/P. PV = nRT. 3.193 mol. 425 C. 698 K. (0.082057 L atm/mol K). V =.

By placido
(140 views)

Basics of Chemical Bonding

Basics of Chemical Bonding

AP Chemistry. Basics of Chemical Bonding. Properties of substances are largely dependent on the bonds holding the material together. Basics of Bonding. A chemical bond occurs when atoms or ions are strongly attached to each other. Ionic bonds involve the transfer of e – and the

By keely
(416 views)

Chapter 8: Covalent Bonding Resources: Chapter 8 of our TB and unit 6 of workbook

Chapter 8: Covalent Bonding Resources: Chapter 8 of our TB and unit 6 of workbook

Chapter 8: Covalent Bonding Resources: Chapter 8 of our TB and unit 6 of workbook Ch. 8 reading and study guide (in part) Powerpoint used in class Lab practical: Molecular models Handouts: practice problems and naming of covalent/molecular compounds Animations and simulation.

By jody
(218 views)

Chapter 5 - Ionic Bonding

Chapter 5 - Ionic Bonding

Chapter 5 - Ionic Bonding. Bonds. Chemical bond - forces of attraction that hold atoms together. The molecule is more stable than the separate ions/ atoms. Bond energy - the energy required to break (or form) a chemical bond. Energy is released when the bond is formed.

By tadeo
(407 views)

Equilibrium

Equilibrium

Equilibrium. Reactions are reversible. A + B C + D ( forward) C + D A + B (reverse) Initially there is only A and B so only the forward reaction is possible As C and D build up, the reverse reaction speeds up while the forward reaction slows down. Eventually the rates are equal.

By libra
(284 views)

III. Moles/Stoichiometry

III. Moles/Stoichiometry

III. Moles/Stoichiometry. In all chemical reactions there is a conservation of mass, energy, and charge. Matter cannot be created nor destroyed, only changed from one form to another Energy cannot be created nor destroyed, only changed from one form to another.

By rad
(131 views)

Chemical Reactions

Chemical Reactions

Chemical Reactions. Unit 3 Enloe High School. Law of Conservation of Mass. During physical or chemical changes matter is neither created nor destroyed. Chemical reactions do involve the separation, combination, or rearrangement of atoms. Mass of products = mass of reactants

By abla
(159 views)

Spiliotopoulou Aikaterini Master thesis 30 ECTS

Spiliotopoulou Aikaterini Master thesis 30 ECTS

Photolysis and secondary formation of disinfection by-products by UV treatment of swimming pool water. Spiliotopoulou Aikaterini Master thesis 30 ECTS. Supervisors: Henrik Rasmus Andersen Kamilla Marie Speht Hansen. Outline. Introduction Disinfection by-products (DBPs)

By solange
(78 views)

CHAPTER 15 Chemical Equilibrium

CHAPTER 15 Chemical Equilibrium

CHAPTER 15 Chemical Equilibrium. Equilibrium Consider a system consisting of a mixture of gases at some temperature T where the following general and reversible chemical reaction is taking place. a A(g) + b B(g)  c C(g) + d D(g)

By jill
(334 views)

Reaction Types

Reaction Types

Reaction Types. Combination (Synthesis) Reactions. Two or more substances combine to form a new compound. A + X  AX. Reaction of elements with oxygen and sulfur Reactions of metals with Halogens Synthesis Reactions with Oxides There are others not covered here!.

By irisa
(108 views)

Types of Chemical Reactions

Types of Chemical Reactions

Types of Chemical Reactions. Aim: What are the five general types of reactions?. 5 Types of Chemical Reactions. synthesis Decomposition Single Replacement Double Replacement Combustion. #1 - Synthesis Reactions. Combine = put together

By cruz
(218 views)

Chemistry 121 Winter 17

Chemistry 121 Winter 17

Introduction to Organic Chemistry and Biochemistry Instructor Dr. Upali Siriwardane (Ph.D. Ohio State) E-mail: upali@latech.edu Office : 311 Carson Taylor Hall ; Phone: 318-257-4941 ; Contact me trough e-mail if you have questions. Chemistry 121 Winter 17.

By malha
(255 views)

Water Treatment 4. Softening

Water Treatment 4. Softening

Water Treatment 4. Softening. Water Softening Hard water Hard water is usually defined as water which contains a high concentration of Ca++ and Mg++ ions. Water Softening Softening is the removal of hardness from water. Types of Hardness Carbonate hardness (Temporary Hardness)

By tamera
(122 views)

Check for Understanding-Whiteboard

Check for Understanding-Whiteboard

Check for Understanding-Whiteboard. Name the following: Cr 2 O 3 FeO NiCl 2 S 3 Cl 6 HI HNO 3 Write the chemical formula for the following: Iron (III) Oxide Calcium Nitride Diphosphorus hexaiodide Carbonic acid Hydrochloric acid. Stoichiometry. Ch. 3. Lab A Partners.

By dinos
(79 views)

Enthalpy and Hess’s Law

Enthalpy and Hess’s Law

Enthalpy and Hess’s Law. From the homework, you may have realized that H can have a negative number. It relates to the fact that energy as heat has either entered or left the system. If it was positive , it meant that the heating of the sample required energy.

By clemens
(1 views)

Physical Chemistry

Physical Chemistry

Physical Chemistry. §25−1 Electrode Polarization (1) Polarization & Overpotential Electrical energy Chemical energy Eg. in electrolysis of saturated NaCl, E = 3.5 V ( E reversible = 2.17 V ). Galvanic cell. Electrolytic cell.

By mai
(813 views)

LES BATTERIES Lionel ROUÉ Institut National de la Recherche Scientifique

LES BATTERIES Lionel ROUÉ Institut National de la Recherche Scientifique

LES BATTERIES Lionel ROUÉ Institut National de la Recherche Scientifique Département Énergie, Matériaux et Télécommunications Varennes, Québec, CANADA. Sommaire. Historique Le marché des batteries Concepts de base Les facteurs influençant les performances d’une batterie

By chana
(184 views)

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