'2 na' diaporamas de présentation

Stoichiometry

Stoichiometry. Calculations based on chemical reactions. Stoichiometry. Stoichiometry is a Greek word that means using chemical reactions to calculate the amount of reactants needed and the amount of products formed.

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II. Five basic types of chemical reactions:

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1 Precipitation

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Nomenclature

Nomenclature. Unit 3- as can be found in Chapter 4 of your World of Chemistry textbook. Georgia Performance Standard. SC1d- Use IUPAC nomenclature for both chemical names and formulas: Ionic Compounds (Binary & Tertiary) Covalent Compounds (Binary & Tertiary)

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Types of Chemical Reactions

Types of Chemical Reactions. Good News!. Of all the millions of possible chemical reactions, there are only 5 basic types of reactions. Synthesis. Two or more reactants combine to form a product: A + B C C + O 2 CO 2. Decomposition.

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12 Weeks to TAKS Week 12

12 Weeks to TAKS Week 12. Objective 4: 8c: Law of Conservation of Mass The student is expected to investigate and identify the law of conservation of mass. Chemical Equations: An expression in which symbols and formulas are used to represent a chemical reaction.

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Conservation of Mass and Reactions

Conservation of Mass and Reactions. Objective 4 TEK 8 The student knows tat changes in matter affect everyday life. (C ) The student is expected to investigate and identify the law of conservation of mass.

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Periodic Properties and Trends

Periodic Properties and Trends. Atomic Radii. Size Increases going down a group.

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Ch 11. Group 1 (Alkali Metals)

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Stoichiometry

Stoichiometry. Pd 5 3/17/10. What mass of Na 2 O 2 is produced when 3.74 g of Na and 5.34 of O 2 react?. 1 st balance the equation. What is the correct balanced equation?. Incorrect Answer.

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Do Now

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??? ??? ? ? ? ? ? ? Li Na K Rb Cs Fr

??? ??? ? ? ? ? ? ? Li Na K Rb Cs Fr. ????????. ??? ? ?.??????? ????????? ??????????? ????????????. ???????? 1.??????. 2.???? Na. ?.?????? ?????? ?? ?. +1 -2. ==2Na 2 O ( ???. 4Na+O 2. ???. ???. +1 -1. ??. 2 Na+O 2 ==Na 2 O 2. ?????. ????.

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Main-Group Metals

Main-Group Metals. The Activity of Metals. Lithium, sodium, and potassium all react with water. The rate of this reaction increases as we go down this column.

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EXPERIMENT 9- THE PERIODIC TABLE

EXPERIMENT 9- THE PERIODIC TABLE. INTRODUCTION:. The periodic table is arranged into seven horizontal rows and 18 vertical columns. The particular row and column tell us much about the properties of an element.

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???? ????????

? Rb ? Cs. ????. ? Ca ? 5 ? ? Sr ????????? ? Ba ? 17 ?. ???? ????????.

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ELECTROLYSIS

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Chemical Equations

Chemical Equations. Because the same atoms are present in a reaction at the beginning ( reactants ) and at the end ( products ), the amount of matter in a system does not change. The Law of Conservation of Matter. 20%. Chemical Factory. 100%. 100%. 80%. Kotz web.

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ELECTROLYSIS

ELECTROLYSIS. Electrolysis: electricity to break apart substance. "electro"=electricity "lysis"=break Electrolytic cell Process of using electricity to force a nonspontaneous reaction .

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How to Balance a Chemical Reaction

CaCl 2 (aq) + 2AgNO 3 (aq) ? Ca(NO 3 ) 2 (aq) + 2AgCl(s) Ca 2+ + 2Cl - + 2Ag + + 2NO 3 - ? Ca 2+ + 2NO 3 - + 2AgCl(s) 2Cl - (aq) + 2Ag + (aq) ? 2AgCl(s) Ag + + Cl - ? AgCl(s) H + + OH - ? H 2 O 2 H + + CO 3 2- ? H 2 O + CO 2 NaCl(aq)+AgNO 3 (aq)?AgCl(s)+NaNO 3 (aq)

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Precipitation Reactions (Double Replacement Reactions)

(s). Precipitation Reactions (Double Replacement Reactions). 4.16 Write balanced net ionic equations for the reactions that occur in each of the following cases. Cr 2 (CO 3 ) 3 + (NH 4 ) 2 SO 4. 3. (a) Cr 2 (SO 4 ) 3 ( aq ) + (NH 4 ) 2 CO 3 ( aq ) ?. 3. Chromium(III)

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