'Combustion reactions' diaporamas de présentation

Chapter 3. Chemical Reactions and Earth’s Composition. The Development of Earth. Matter in the Universe condensed into planets. The planets closer to the sun have different chemical compositions than the rest of the universe. Many of the volatile chemicals were lost from these planets.

Explaining a Combustion Reaction. Combustion Reactions 5.1. What is Combustion Reaction?. Chemical reaction that involves oxygen and an organic molecule and that produces energy so rapidly that flames are created. What are some real-life examples of combustion reactions?.

Organic Chemistry. Applied Chemistry Milbank High School. Organic Chemistry. Chemistry of compounds that contain carbon Combine mainly with hydrogen, oxygen, and nitrogen Over 10 million compounds made with these 4 elements 95% of compounds contain carbon. Properties. Very Flammable!

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: Combination (Synthesis)

Chemical Reactions. Chapter 7. Chemical Equations. A way to describe what happens in a chemical reaction. Tells us what substances are involved with the reaction Tells us how much of each substance is needed in a chemical reaction. REACTANTS The substances that go into a chemical equation.

Chemistry, The Central Science , 10th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten. Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations. John D. Bookstaver St. Charles Community College St. Peters, MO  2006, Prentice-Hall.

Types of Chemical Reactions. Combination/Synthesis Reaction. General Equation: R + S  RS Reactants: Generally two elements or two compounds. Probable Products: A single compound Example: 2Mg (s) + O 2(g)  2MgO (s ). Solution.

Types of Chemical Reactions. There are five main types of chemical reactions that we will be covering in this chapter: Combination reactions Decomposition reactions Single-Replacement reactions Double-Replacement reactions Combustion reactions. Combination Reactions.

Chemical Reactions. Chapter 4 Stoichiometry. Balancing Chemical Equations. “Matter is conserved in chemical change” Antoine Lavoisier, 1789 An equation must be balanced: It must have the same number of atoms of each kind on both sides. Combustion Reactions.

Chapter 8 Chemical Equations. Objectives: Be able to identify chemical equations Write and balance chemical equations Describe the information given in any chemical equation Identify types of chemical equations Understand and describe the roles of heat in chemical reactions.

Types of Chemical Reactions. 1. Synthesis Reactions. A synthesis reaction occurs when two or more simple substances combine to produce a more complex substance. AKA: C ombination reaction . The general equation for a synthesis is: A + B  AB

C hemistry. The study of matter and the CHANGES it undergoes. shastacollege.edu. The Law of Conservation of Mass. Mass can neither be created nor destroyed in any chemical process.

CHAPTER 18. Hydrogen, Oxygen, and Water. Hydrogen. Isolated by Cavendish by the reaction of acids with active metals Named by Lavoisier (hydrogen – water former) Thought to be the most abundant element in the universe.

Types of Chemical Reactions. Addition or Synthesis Reactions. The formation of a compound from elements or simpler compounds Follows the pattern A + B → AB 2H 2 + O 2 → 2H 2 O Accompanied by a release of energy 2H 2 + O 2 → 2H 2 O + energy. Decomposition Reactions.

Balancing Chemical equations . For each skeleton equation to become a complete (final form) chemical equation, coefficients must be inserted into the skeleton equation. Coefficients are whole numbers which indicate the relative amounts of each substance.

“Jeopardy”. Type the topic here. Topic 1: 1 point. What reactant is used in all combustion reactions. Oxygen. Topic 1: 2 points. What is the Lewis Structure of Water. H-O-H. Topic 1: 3 points. Type the question here. Type the answer here. Topic 1: 4 points.

OB: Combustion Reactions Combustion reactions require a hydrocarbon compound to combine rapidly with oxygen, forming oxygen and carbon dioxide, and lots of energy. There is little challenge recognizing these reactions, and the products NEVER vary.

Types of Chemical Reactions. Types of Reactions. There are five types of chemical reactions we will talk about: Synthesis reactions Decomposition reactions Single displacement reactions Double displacement reactions Combustion reactions

Causes of Change. Changes in Enthalpy During Chemical Reactions. Changes in Enthalpy Accompany Reactions. Changes in enthalpy occur during reactions Changes depend on many variables Temperature is the most important For simplicity, data is usually obtained at 25.00 º C or 298.15K.

Chemical Equations. What is a chemical equation? How do you balance a chemical equation? How do you identify the type of chemical equation?. Chemical Equations.