dars
lab
free school lessons
Uzbekistan
Uzbekistan
🏫
School
Sections
🏫
Uzbek school curriculum
🏫
School
My cabinet
Badges
About
Grade
1
2
3
4
5
6
7
8
9
10
11
🌐
EN
UZ
O‘zbekcha
EN
English
RU
Русский
AR
العربية
Log in
🏫
School
Term 1
Chapter 1 Transition Elements; Chapter 2 Chemical Analysis; Chapter 3 Chemical Equilibrium; Term 1 review
1
الفئة d والسلسلة الأولى واستخداماتها
Chapter 1 Transition Elements (A): chapter opener and objectives, the d block and the four transition series, the first series Sc to Zn and the uses of each element (light, descriptive week)
2
التراكيب الإلكترونية وحالات التأكسد ومن يُعدّ عنصرًا انتقاليًّا
Chapter 1 (B): electron configurations of the first series with the chromium and copper exceptions, oxidation states (why iron(II) oxidises easily and manganese(II) does not), the definition of a transition element, coinage metals in and zinc, cadmium and mercury out
3
خواص السلسلة الأولى ومغناطيسيتها وعواملها الحفازة
Chapter 1 (C): general properties of the first series (atomic mass, radius, density, metallic character), paramagnetic and diamagnetic substances and counting unpaired electrons, transition metals as catalysts
4
خامات الحديد واستخلاصه والصلب والسبائك
Chapter 1 (D): iron in nature, the iron ores, ore dressing and roasting, reduction in the blast furnace and the gas-reduction furnace, cast iron and steel, the three types of alloys (conceptual: industrial processes are described, never instructed)
5
الحديد وأكاسيده
Chapter 1 (E): pure iron and its +2 and +3 states, the reactions of iron (air, steam, chlorine, sulphur, acids, passivity) and the three oxides of iron with their preparation and properties (paper equations and calculations only)
6
التحليل الكيميائي ومجموعة حمض الهيدروكلوريك المخفف
Chapter 2 Chemical Analysis (A): chapter opener and a revision of earlier mole formulas (Darslab practice), what chemical analysis is for, qualitative and quantitative analysis, the three anion groups and the dilute hydrochloric acid group (carbonate, hydrogencarbonate, sulphite, sulphide)
7
بقية الأنيونات وخريطة قرار
Chapter 2 (B): the rest of the anions: thiosulphate and nitrite, the concentrated sulphuric acid group (chloride, bromide, iodide, nitrate with the brown-ring test) and the barium chloride group (phosphate, sulphate); a sorting task on all twelve anions (Darslab practice)
8
الكاتيونات وفكرة المعايرة
Chapter 2 (C): detecting cations (six analytical groups: copper(II), aluminium, iron(II), iron(III), calcium) and the start of quantitative analysis: titration, standard solutions, end point and indicators
9
حسابات التحليل: المعايرة والتحليل الكتلي
Chapter 2 (D): titration calculations with MaVa/na = MbVb/nb, the percentage of a substance in a mixture from a titration, and mass (gravimetric) analysis by volatilisation and by precipitation (water of crystallisation, mass of an ion from a precipitate)
10
الاتزان في وعاء مغلق ومعدل التفاعل
Chapter 3 Chemical Equilibrium (A): chapter opener, physical equilibrium (evaporation and condensation), complete and reversible reactions, chemical equilibrium as a dynamic state, the rate of reaction and what it depends on, the nature of the reactants
11
التصادمات وقانون فعل الكتلة وثابت الاتزان Kc
Chapter 3 (B): surface area and concentration, the law of mass action, the equilibrium constant Kc and what its size means (short, calculation-light text: two and a half book pages, add worked examples and prediction tasks)
12
درجة الحرارة والضغط وKp وقاعدة لوشاتيليه
Chapter 3 (C): temperature and collision theory (activation energy), pressure and Kp, Le Chatelier’s principle, catalysts and light
13
الإلكتروليتات القوية والضعيفة وKa وقانون أوستفالد
Chapter 3 (D): ionic equilibrium: strong and weak electrolytes, ionisation of acids, ionisation constants, the hydronium ion, the degree of ionisation and Ostwald’s dilution law
14
الأحماض والقواعد الضعيفة وKw وpH وحاصل الإذابة
Chapter 3 (E): hydronium and hydroxide concentrations of weak acids and bases, the ionisation of water and Kw, pH and pOH, solubility and the solubility product Ksp (heaviest week: three lessons of calculations)
15
مراجعة: الحديد والتحليل والاتزان وpH
Term 1 review (Chapters 1–3) and Darslab’s own review tasks
☰ Year plan · Chemistry (Arabic)
Egypt
›
Secondary 3
›
Chemistry (Arabic)
›
Week 13
الإلكتروليتات القوية والضعيفة وKa وقانون أوستفالد
Week 13 · Chapter 3 (D): ionic equilibrium: strong and weak electrolytes, ionisation of acids, ionisation constants, the hydronium ion, the degree of ionisation and Ostwald’s dilution law · 3 lessons
الدرس 1
الدرس 2
الدرس 3
الاختبار
8
الواجب المنزلي
5
فعّل JavaScript في المتصفح لتبدأ الاختبار.
السابق
الأسبوع 13 ·
درجة التأين وقانون أوستفالد للتخفيف
التالي
الأسبوع 13 · الواجب المنزلي
