'2 mgo' diaporamas de présentation

Chapter 1

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DO NOW

DO NOW. Pick up notes packet and two handouts Balancing Equations II is due tomorrow Read pages 280-288 for homework. CHEMICAL REACTIONS. Chemical Reactions.

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Matter PESTL Content Course Brett D. Moulding – Instructor November 8, 2008

Matter PESTL Content Course Brett D. Moulding – Instructor November 8, 2008. Matter = An Overview Atomic Theory Conservation of Mass Chemical Equations What is a “Mole” Chemical and Physical Change Putting it all Together. We will be learning chemistry today.

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Chemical equation the symbolic representation of a chemical reaction (process) wherein the

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1. Magnesium metal combines with oxygen gas to produce magnesium oxide

1. Magnesium metal combines with oxygen gas to produce magnesium oxide. 1. Magnesium metal combines with oxygen gas to produce magnesium oxide __Mg + __O 2 ? __MgO. 1. Magnesium metal combines with oxygen gas to produce magnesium oxide 2 Mg + __O 2 ? 2 MgO. 2. Cu + AgNO 3 ?.

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Stoichiometry

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What type of rxn?

What type of rxn?. Double Replacement. Synthesis. Decomposition. Single Replacement. Combustion. Make new cmpds Flip and drop + / -. Find Charges Flip and Drop. Split into elements Check for diatomics. Products are CO 2 + H 2 O. Make new cmpd Flip and Drop + / -

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Chemical Reactions

Chemical Reactions. Chemical Reactions. New Substances produced by changing the way atoms are arranged Physical Changes ? Chemical Reaction Evidence Change in Color (rust) Temperature Change (endo/exo-thermic) Formation of a Gas Formation of a Solid (Precipitate).

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In and out of the ECAs compliance strategy of an international shipping line

In and out of the ECAs compliance strategy of an international shipping line. jai. Setting the scene. Principles of Conduct Protecting the environment

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Law of Conservation of Mass

Law of Conservation of Mass. Balancing Chemical Equations. What is a chemical equation?. A chemical equation is shorthand way of expressing a chemical reaction. Anatomy of a Chemical Equation. Reactants The matter that is present before the reaction takes place.

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History of Chemistry

History of Chemistry. Practical Arts and Crafts (---to 600 B.C.E.) Greek Period (600 to 300 B.C. E.) Alchemy (300 B.C.E. to 1650 C.E.) Phlogiston (1650 to 1790) Modern Chemistry (1790--- ) Note: This listing focuses on the Middle East and Western Europe.

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Chapter 8

Chapter 8. Chemical Equation Indicators of a reaction Energy (heat or light) Gas (effervescence) Precipitation (solid forms). Word Equations Zinc plus hydrochloric acid yields hydrogen and zinc II chloride Formula Equations Zn + HCl ? H 2 + ZnCl 2 Coefficients

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Chemical Reactions

Chemical Reactions. By: Jack M. Synthesis. Magnesium forms with oxygen to make magnesium oxide What is this balanced? Mg + O 2 ? MgO. Synthesis Part 2. 2 Mg + O 2 ? 2 MgO Smaller Reactants combine to form larger products. Decomposition.

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4 TYPES OF CHEMICAL REACTIONS

4 TYPES OF CHEMICAL REACTIONS. 4 TYPES OF CHEMICAL REACTIONS. Synthesis Reaction Decomposition Reaction Single Displacement Reaction Double Displacement Reaction.

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4Fe + 3O 2 ? 2 Fe 2 O 3

4Fe + 3O 2 ? 2 Fe 2 O 3. What do you notice about the atoms in this equation?. Word Equation: Acetic acid + sodium hydrogen carbonate --? sodium acetate + water +carbon dioxide Chemical Equation: H 2 C 2 H 3 O 2 + NaHCO 3 --? NaC 2 H 3 O 2 + H 2 O + CO 2 Reactant Product

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Atomic Number = number of protons Mass Number = number of protons + number of neutrons

Atomic Number = number of protons Mass Number = number of protons + number of neutrons Isotopes = atoms of the same element (having the same number of protons) having different numbers of neutrons. White, cloudy stuff (precipitate) forms

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??????

??????. ? ??????????????????????????????. ??????? ?????????. ??????. ??? ( H). ??? ?H. ?H = ???????? ? ????????. ??????. ????????????????????? ???????. ???????????? ???? ????? ??? ??????? ?? ? ?? ????. ????????. ???. CO ( g ) + H 2( g ) + O 2(g). ?H 2 = 131.5kJ. ?H 1 = -525.0kJ.

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