'2 na 2' presentation slideshows

2 na 2 - PowerPoint PPT Presentation


Chemical Bonding and Nomenclature

Chemical Bonding and Nomenclature

Chemical Bonding and Nomenclature. Atoms can form molecules bonds: IONIC COVALENT METALLIC Get to know the difference between IONIC and COVALENT BONDS based on what happens with the valence electrons .h. LET’S FIRST REVIEW IONIC BONDING. Opposites Attract!.

By johana
(197 views)

Chapter 5

Chapter 5

Chapter 5. Chemical Bonds, Nomenclature, Lewis Structure and Molecular Shapes. 75%. % Ionic Character. 50%. 25%. Electronegativity difference. I. Chemical Bonds B. Ionic Bonds.

By keita
(396 views)

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
(132 views)

第 6 章 酸碱滴定法 6

第 6 章 酸碱滴定法 6

第 6 章 酸碱滴定法 6. 多元酸碱滴定、酸碱滴定法的应用. 弱酸准确滴定的条件:. 弱酸准确滴定条件: cK a ≥10 -8 对于 0.1000mol·L -1 的 HA, K a ≥10 -7 才能准确滴定. 6.9 多元酸 ( 碱 ) 的滴定:. 多元酸能分步滴定的条件 滴定计量点的 pH 值的计算 指示剂的选择. 被滴定的酸足够强 , cK an ≥10 -8 相邻两步解离相互不影响,△ lg K a 足够大 , 若△ pH=±0.2, 允许 E t =±0.3% , 则需 △ lg K a ≥5. 多元酸能分步滴定的条件 :.

By rufus
(225 views)

5-7 多元酸 ( 碱 ) 的滴定 一、多元酸碱分步滴定的可行性判据

5-7 多元酸 ( 碱 ) 的滴定 一、多元酸碱分步滴定的可行性判据

5-7 多元酸 ( 碱 ) 的滴定 一、多元酸碱分步滴定的可行性判据 存在问题: 1. 多元酸分步离解出来的 H + 是否均可被测定; 2. 若均可被滴定,会形成几个明显的 pH 突跃? 3. 若有几个 pH 突跃,如何选择指示剂? 由一元弱酸准确滴定的条件,即 c a K a ≥10 -7.7 或 c sp K a ≥10 -8 可知,只要 c sp1 K a1 ≥10 -8 、 c sp2 K a2 ≥10 -8 、 c sp3 K a3 ≥10 -8 多元弱酸分步离解的 H + 均可测定,反之均不能,或不能准确滴定。

By gari
(393 views)

无机化学

无机化学

无机化学. 15 氧族元素 Chapter 15 Oxygen Family Element. 返回. 基本内容和重点要求. 氧族元素通性 氧和臭氧的结构、性质及用途 水结构、性质 过氧化氢结构、性质及用途 硫及其化合物 硒和碲 无机酸强度的变化规律. 重点要求掌握氧族元素通性,氧、臭氧、水、过氧化氢的结构和性质,硫化物及其含氧酸. 返回. 1 氧族元素通性. VIA : O,S,Se,Te,Po. 1 氧族元素通性. (1) 最外层电子结构. ns 2 np 4. (2) 电子亲合能 E.

By kaemon
(363 views)

Types of Chemical Reactions

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 )

By elyse
(224 views)

Stoichiometry

Stoichiometry

Stoichiometry. Used to predict how much chemical is needed / made by reactions. Requires: Molecular Weight Balanced Equation. Stoichiometry – Balanced Eqn. A balanced chemical equation has multiple conversion factors in it: 4 Na (s) + O 2 (g)  2 Na 2 O

By vivian
(100 views)

人教必修 1 第一、二章综合练习

人教必修 1 第一、二章综合练习

人教必修 1 第一、二章综合练习. A. B. C. D. 一、选择题 ( 只有一个正确选项,共 45 分 ). 1. 在盛有浓硫酸的试剂瓶的标签上应印有下列警示性标志中的 ( A ). 2. 离子方程式 CO 3 2- + 2H + = H 2 O + CO 2 中的 CO 3 2- 代表的物质可以是 ( C ). A.CaCO 3 B.NaHCO 3 C.Na 2 CO 3 D.BaCO 3. 3. 下列叙述正确的是 ( C ). A.1molH 2 O 的质量为 18g/mol. B.CH 4 的摩尔质量为 16g.

By redford
(165 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
(170 views)

Topic: Stoichiometry: Balancing Chemical Equations

Topic: Stoichiometry: Balancing Chemical Equations

Topic: Stoichiometry: Balancing Chemical Equations. What is stoichiometry?. The study of quantitative relationships in a balanced chemical equation Balance equations represent chemical reactions Remember in chemical reactions 3 things are conserved Matter Energy charge.

By lexiss
(294 views)

Chemical Equations & Reactions

Chemical Equations & Reactions

Chemical Equations & Reactions. Chemistry A. Chemical Reactions. You should be able to Classify reactions by type. Write a balanced molecular equation, complete ionic equation, and a net ionic equation. Predict products of reactions given the chemical names of the reactants.

By cindy
(248 views)

A Study of Chemical Reactions

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:

By jack
(344 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
(199 views)

Chapter 4 Nomenclature 4.1 Naming Compounds that contain a Metal and a Nonmetal

Chapter 4 Nomenclature 4.1 Naming Compounds that contain a Metal and a Nonmetal

Chapter 4 Nomenclature 4.1 Naming Compounds that contain a Metal and a Nonmetal Binary Ionic Compound Type I Compounds Cation is always named 1 st , and the anion second A simple cation takes its name from the element.

By wilmer
(141 views)

CHEMICAL REACTIONS AND EQUATIONS

CHEMICAL REACTIONS AND EQUATIONS

CHEMICAL REACTIONS AND EQUATIONS. CHEMISTRY MS. WACK. CHEMICAL REACTIONS. In a chemical reaction, bonds are broken, atoms are rearranged, and new bonds are formed. Something “new” is produced. H 2 + O 2  H 2 O. Is it a chemical reaction?. Clues that a chemical reaction has occurred:.

By gore
(230 views)

Abiotic Factors - Chemistry

Abiotic Factors - Chemistry

Abiotic Factors - Chemistry. Chemical make-up of Seawater. Special Properties - due to H-bonding, polarity 1. high heat of fusion (335 J g -1 ) - only NH 4 is higher 2. high heat of vaporization (44 kJ mol -1 at 24 o C) 3. high specific heat (4.18 J g -1 o C -1 )

By seda
(138 views)

Types of Reactions

Types of Reactions

Types of Reactions. http://www.youtube.com/watch?v=XS6JTr-mTWY. There are 6 types of reactions you will learn:. Synthesis Decomposition Single Replacement (displacement) Double Replacement (displacement). Synthesis:. Two or more reactants combine to produce a new product.

By meadow
(93 views)

Stand up hand up pair up

Stand up hand up pair up

Stoichiometry , Stoichiometry , Stoichiometry. Stand up hand up pair up. With partner #1. B 2 H 6 + O 2  HBO 2  + H 2 O What mass of O 2 will be needed to burn 36.1 grams of B 2 H 6 ?. With partner #1. 1 B 2 H 6 + 3 O 2  2 HBO 2  + 2 H 2 O

By fabian
(533 views)

Chemistry 161.08

Chemistry 161.08

Chemistry 161.08. Chemistry 161.08 Fall 2013. Dr. Azizeh Farajallah Office: IB 2324C Phone number: 934-3940 Email: azizeh.farajallah@seattlecolleges.edu Office hours : W/Th 5:00-5:50pm. Lecture: M& W at 6:00-9:50pm. Chapter 6-10. Grading?.

By cathy
(68 views)

View 2 na 2 PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of 2 na 2 PowerPoint presentations. You can view or download 2 na 2 presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.