'2 cl 2 2hcl' diaporamas de présentation

A Study of Chemical Reactions

A Study of Chemical Reactions. Equations, Mole Conversions, & Stoichiometry. Types of Reactions. Many chemical reactions have defining characteristics which allow them to be classified as to type. Types of Chemical Reactions. The five types of chemical reactions in this unit are:

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What is the law of conservation of mass?

Burning is a chemical change. When a substance undergoes a chemical change, a chemical reaction is said to take place. Chemical Equations. What is the law of conservation of mass?. The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

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Thermochemistry: Chemical Energy

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Types of Chemical Reactions

Types of Chemical Reactions. Writing Chemical Reactions. Types of Reactions. Many chemical reactions have defining characteristics which allow them to be classified as to type. Types of Chemical Reactions. The five types of chemical reactions in this unit are: Synthesis ( Combination )

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Gases and Liquids

Gases and Liquids. Fluids. Kinetic Molecular Theory. Gases are fluids Gases have low density Gases are highly compressible Gases completely fill a container and exert pressure equally in all direction Gases move faster in higher temperature V=158 ? T MM. Atmosphere is a sea of gases.

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Chapter 8 Quantities in Chemical Reactions

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Topic 1.3 - Formulae, equations and amounts of substance

Topic 1.3 - Formulae, equations and amounts of substance. Lesson 3 - Chemical calculations. e. use chemical equations to calculate reacting masses and vice versa using the concepts of amount of substance and molar mass

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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

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Gases

treehuggerusa.com. Gases. treehugger.com. balloonfestivals.com. Pressure. The force per unit area of a surface. Units: N/cm 2 N, Newton: SI unit of force As area of contact changes, force changes 500 N = 1.7 N 500 N = 83.3 N 300 cm 2 cm 2 6.0 cm 2 cm 2.

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Redox and Electrochemistry

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Types of Chemical Reactions

Types of Chemical Reactions. A chemical equation describes a chemical change. The Law of Conservation of Mass says that the number and kind of atoms going INTO a chem. rxn must be the same as the number and kind of atoms coming OUT.

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Enthalpy

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THERMOCHEMISTRY

THERMOCHEMISTRY. CP Unit 9 Chapter 17. Thermochemistry 17.1. Thermochemistry is the study of energy changes (HEAT) that occur during chemical reactions and changes in state. ENTHALPY 17.2.

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THERMOCHEMISTRY

THERMOCHEMISTRY. CP Unit 9 Chapter 17. Thermochemistry 17.1. Thermochemistry is the study of energy changes (HEAT) that occur during chemical reactions and changes in state. ENTHALPY 17.2.

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Ch. 9 K&K: Gibbs Free Energy and Chemical Reactions

Ch. 9 K&K: Gibbs Free Energy and Chemical Reactions. Recall (ch. 8): Free energy conditions . Helmholtz F isothermal Enthalpy H constant pressure Gibbs G const. pressure and temp.

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and Chemistry?

Energy. and Chemistry?. Joules or calories. Joules or calories. Joules or calories. Joules or calories. How much energy is stored in glucose?. C 6 H 12 O 6. Chemical Energy. When chemical reactions occur, bonds are first broken and then formed.

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Have you ever heard about oxidation ? Where? When? When the iron goes rusty? In a combustion?

REDOX. Have you ever heard about oxidation ? Where? When? When the iron goes rusty? In a combustion? When we breathe?. REDOX. Fe + 1/2 O 2 ? FeO Fe + HCl ? FeCl 2 Do you see similarities in these two reactions? In which valence acts the iron, before and after?

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Chemical quantities in reactions

Chemical quantities in reactions. What and why. If we know the chemical equation for a product: We can work out how much we need We can work out how much we will get We can work out the percentage efficiency of processes Why is all this so important in the real world?. Starter questions.

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Chapter 14-3

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HOMEWORK SOLUTIONS

HOMEWORK SOLUTIONS. CHAPTER 6.5 PAGE 229 #2,3ad. QUESTION 2. A) Na + Cl 2 NaCl 2Na + Cl 2 2NaCl B) K + O 2 K 2 O 4K + O 2 2K 2 O C) H 2 + O 2 H 2 O 2H 2 + O 2 2H 2 O

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