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第二章 碱金属 锂 钠 钾 铷 铯 钫 Li Na K Rb Cs Fr

第二章 碱金属 锂 钠 钾 铷 铯 钫 Li Na K Rb Cs Fr

第二章 碱金属 锂 钠 钾 铷 铯 钫 Li Na K Rb Cs Fr. 南城二中:邱文军. 第一节 钠 一.钠的物理性质: 银白色金属,质软, 有延展性,导电、导热, 熔、沸点低,密度比水小。. 二、钠的原子结构 1.原子结构示意. 2.电子式: Na. 三.钠的化学性质 与氧气反应: 常温 :. +1 -2. ==2Na 2 O ( 白色). 4Na+O 2. 氧化钠. 点燃:. +1 -1. 点燃. 2 Na+O 2 ==Na 2 O 2. (淡黄色). 过氧化钠.

By topper
(125 views)

II. Five basic types of chemical reactions:

II. Five basic types of chemical reactions:

II. Five basic types of chemical reactions:. Synthesis (composition) Decomposition Single Replacement Ionic or Double Replacement Combustion. A. Synthesis (composition):. two or more elements or compounds may combine to form a more complex compound. Basic form: A  +  X   AX.

By zuriel
(77 views)

EXPERIMENT 9- THE PERIODIC TABLE

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.

By afra
(187 views)

Do Now

Do Now

Do Now. Sit with your MOUTHS CLOSED AND VOICES OFF then answer the following in your notes… When you mix a cake and bake it, do you think there is the same amount of product in the cake as you used to bake it with? Why?

By adem
(168 views)

Stoichiometry

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.

By chaz
(155 views)

12 Weeks to TAKS Week 12

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.

By nia
(156 views)

Periodic Properties and Trends

Periodic Properties and Trends

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

By beulah
(50 views)

Types of Chemical Reactions

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.

By keegan
(95 views)

Nomenclature

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)

By tress
(195 views)

1 Precipitation

1 Precipitation

1 Pb 2+ + 2 I 1 – → PbI 2 2 CO 3 2– + Zn 2+ → ZnCO 3 3 Ag + + Br – → AgBr 4 Ba 2+ + CO 3 2– → BaCO 3 5 2 NaOH + Mg 2+ → Mg(OH) 2 + 2 Na + 6 H 2 S + Cd 2+ → CdS + 2 H + 7 3 AgCH 3 CO 2 + PO 4 3– → Ag 3 PO 4 + 3 CH 3 COO –

By bowen
(207 views)

Chemical Equations

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.

By josh
(114 views)

第十七章 碱金属和碱土金属

第十七章 碱金属和碱土金属

铷 Rb 铯 Cs. 与钾共生. 钙 Ca 第 5 位 锶 Sr 碳酸盐及硫酸盐矿物 钡 Ba 第 17 位. 第十七章 碱金属和碱土金属.

By shania
(230 views)

Precipitation Reactions (Double Replacement Reactions)

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)

By kalani
(257 views)

Main-Group Metals

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.

By nen
(126 views)

Stoichiometry

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.

By orenda
(70 views)

ELECTROLYSIS

ELECTROLYSIS

ELECTROLYSIS. Compare and contrast voltaic (galvanic) and electrolytic cells Explain the operation of an electrolytic cell at the visual, particulate and symbolic levels Include: molten and aqueous electrolytic cells. Additional KEY Terms. Electrolysis: “electro” – electricity

By kirima
(294 views)

ELECTROLYSIS

ELECTROLYSIS

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

By cleave
(172 views)

Conservation of Mass and Reactions

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.

By tacy
(165 views)

Ch 11. Group 1 (Alkali Metals)

Ch 11. Group 1 (Alkali Metals)

Ch 11. Group 1 (Alkali Metals). D H vap (in kJ/mol) for Metals. Elemental Metals. Synthesis by electrolysis 2 KOH  K (m) + ½ O 2 (g) + H 2 O (l) Sir Humphrey Davy, 1807 (K, Na) Reactivities: M (m) + H 2 O  MOH (aq) + ½ H 2 (g)

By tomas
(193 views)

How to Balance a Chemical Reaction

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)

By fritzi
(119 views)

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