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Important Chemical Reactions

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About IB Chemistry Exam

Assessment in the IB Chemistry exam is by means of examination and practical for both higher and standard level chemistry courses.

Examination weightage - 76%
Practical work weightage - 24%

Examination (higher level)

There are three papers:

Paper 1 Multiple choice - 20%
Paper 2 Structured questions - 36%
Paper 3 Options questions - 20%
  Total - 76%

Paper 1 (high) : 1 hour consists of 40 multiple choice questions. Calculators are not allowed. A periodic table is provided

Paper 2 (high) : 2 hours 15 minutes consists of five structured questions and a choice of two from four longer answer questions. Calculators are allowed and a data booklet is provided

Paper 3 (high) : 1 hour 15 minutes consists of three questions form each of two selected options. The paper presents eight option choices. Calculators are allowed and data booklets are provided.

Examination (standard level)

There are three papers:

Paper 1 Multiple choice - 20%
Paper 2 Structured questions - 36%
Paper 3 Options questions - 20%
  Total - 76%

Paper 1 (standard) : 45 minutes consists of 30 multiple choice questions. Calculators are not allowed. A periodic table is provided

Paper 2 (standard) : 1 hours 15 minutes consists of some structured questions and a choice of one from three longer answer questions. Calculators are allowed and a data booklet is provided

Paper 3 (standard) : 1 hour consists of two questions from each of two selected options. The paper presents eight option choices. Calculators are allowed and data booklets are provided.

Final grades

The final grade awarded for an IB subject is from 1-7. The schools receive a breakdown of the grade achieved in each part of the exam.


Atomic Structure
Quiz on Atomic Structure
  1. Chemical and Physical means Atomic masses
    • Chemical and Physical
    • Chemical and Physical
  2. Electron energy levels means Atomic masses
    • Chemical and Physical
    • Chemical and Physical
  3. Electron energy levels means Atomic masses
    • Chemical and Physical
    • Chemical and Physical
IB Chemistry Syllabus

CORE LEVEL
Topic 1: Stoichiometry (Core level)
  1. Mole concept and Avogadro's constant
  2. Formulas
  3. Chemical equations
  4. Moles and gaseous volume relationships in chemical 
  5. Reactions
  6. Solutions
Topic 2: Atomic theory (Core level)
  1. The atom
  2. The mass spectrometer
  3. Electron arrangement
Topic 3: Periodicity (Core level)
  1. The periodic table
  2. Physical properties
  3. Chemical properties
Topic 4: Bonding (Core level)
  1. Ionic bonding
  2. Covalent bonding
  3. Intermolecular forces
  4. Metallic bonding
  5. Physical properties
Topic 5: Energetics (Core )
  1. Exo and endothermic reactions
  2. Calculation of enthalpy changes
  3. Hess' law
  4. Bond enthalpies
Topic 6: Kinetics (core ) - summary
  1. Rates of reaction
  2. Collision theory
Topic 7: Equilibrium (Core level)
  1. Dynamic equilibrium
  2. The position of equilibrium
Topic 8: Acids and Bases (Core level)
  1. Theories of acids and bases
  2. Properties of acids and bases
  3. Strong and weak acids and bases
  4. The pH scale
Topic 9: Oxidation and reduction (Core level)
  1. Introduction to oxidation and reduction
  2. Redox equations
  3. Reactivity
  4. Voltaic cells
  5. Electrolytic cells
Topic 10: Organic chemistry (sl) - summary
  1. Introduction
  2. Alkenes
  3. Alkenes
  4. Alcohols
  5. Haloalkanes
  6. Reaction pathways
Topic 11: Measurement and data processing
  1. Uncertainty and error in measurement
  2. Uncertainty in calculated results
  3. Graphical techniques

HIGH LEVEL
Topic 12: Atomic structure (HL) -
  1. Electron configuration
Topic 13: Periodicity (HL) -
  1. Trends across period 3
  2. First row "d" block elements
Topic 14: Bonding (HL)
  1. Shapes of molecules and ions
  2. Hybridization
  3. Delocalisation of electrons
Topic 15: Energetics (HL)
  1. Standard enthalpy changes of reaction
  2. Born-Haber cycle
  3. Entropy
  4. Spontaneity
Topic 16: Kinetics (HL) - summary
  1. Rate expression
  2. Reaction mechanism
  3. Activation energy
Topic 17: Equilibrium (HL)
  1. Liquid-vapour equilibrium
  2. The equilibrium law
Topic 18: Acids and Bases (HL)
  1. Calculations involving acids and bases
  2. Buffer solutions
  3. Salt hydrolysis
  4. Acid-base titrations
  5. Indicators
Topic 19: Oxidation and reduction(HL)
  1. Standard electrode potentials
  2. Electrolysis
Topic 20: Organic chemistry (hl) - summary
  1. Introduction
  2. Nucleophilic substitution reactions
  3. Elimination reactions
  4. Condensation reactions
  5. Reaction pathways
  6. Stereoisomerism
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