M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M This markscheme is confidential and for the exclusive use of exa miners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. -3- M10/3/HISTX/BP1/ENG/TZ0/XX/S3/M For the attention of all examiners: if you are uncertain about the content/accuracy of a ca ndidate’s work please contact your team leader. 1. (a) W hat does Source B suggest about the views of
Premium Deng Xiaoping Communist Party of China People's Republic of China
no excuse for not coming up with better products to whet the appetites of customers who will eventually need to upgrade their computing and electronic devices. Traditionally‚ semiconductor companies controlled the entire production process‚ from design to manufacture. Yet many chip makers are now delegating more and more production to others in the industry. Foundry companies‚ whose sole business is manufacturing‚ have recently come to the fore‚ providing attractive outsourcing options. In addition
Premium Semiconductor Integrated circuit Transistor
experimental techniques which can be used to tell us where the atoms are located in a molecule. Using advanced techniques‚ very complicated structures for proteins‚ enzymes‚ DNA‚ and RNA have been determined. Molecular geometry is associated with the chemistry of vision‚ smell and odors‚ taste‚ drug reactions and enzyme controlled reactions to name a few. Molecular geometry is associated with the specific orientation of bonding atoms. A careful analysis of electron distributions in orbitals will usually
Premium Molecule Electron Atom
Calculation on the molar enthalpy change of a neutralization reaction Principle H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l) The reaction is a exothermic reaction‚ when the heat released by it is absorbed by water‚ the temperature of the water increases. The heat produced by the reaction can be calculated if it is assumed that all the heat is absorbed by the water. Heat change of reaction=-heat change of water =-mH2O×cH2O×△TH2O As the water has gained the heat produced by the reaction‚ the heat change
Free Thermodynamics Temperature Sodium hydroxide
Organometallic preparation and addition to carbonyls‚ Wittig reagent preparation and Wittig rxn‚ Wolff‚ H-based nucleophile carbonyl reduction‚ imine formation‚ reductive amination (rxn only)‚ ketal/acetal formation‚ dithiane chemistry (rxn only)‚ alpha-bromination of ketones‚ -COOH properties (the trends on HW4)‚ Fischer‚ acidic/basic hydrolysis of esters/amides/nitriles‚ CH2N2‚ acid chloride formation (rxn only)‚ acid chloride rxns with esters and amides. 2 Rxn of carboxyllic acid derivatives
Premium Amine Carbonyl Amide
EXPERIMENT 2: SYNTHESIS OF ORANGE II (2-NAFTHOL ORANGE OBJECTIVE 1. To produce dye based to the coupling of diazonium. 2. To understand the characteristic of dye orange II. INTRODUCTION The first dye was introduced by William Henry Perkin on 1856. It can be produced by the coupling of diazonium sulfanilic acid with nafthol in alkaline solution.. This was the common method used to produce dye nowadays. In this experiment‚ dye produced was the orange II. Azo compound is compound that contain
Premium Azo compound Sodium chloride Dye
Data and Observations: Complete a data table that includes a prediction of reaction type (single replacement‚ double replacement‚ synthesis‚ decomposition‚ or combustion)‚ observations‚ and identification of reaction type for each reaction in the lab. (10 points) Reactants Prediction of Reaction Type Observations Reaction Type Conclusion: 1. Write a balanced equation for each
Premium Hydrogen Magnesium Oxygen
INTERNATIONAL BACCALAURÉAT BACHILLERATO c BACCALAUREATE INTERNATIONAL INTERNACIONAL MARKSCHEME May 2002 CHEMISTRY Standard Level Paper 3 12 pages M02/420/S(3)M+ –5– Subject Details: M02/420/S(3)M+ Chemistry SL Paper 3 Markscheme General ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Each marking point is usually shown on a separate line or lines. Alternative answers are separated by a slash (/) – this means that either answer is acceptable. Words underlined are essential for the mark. Material
Premium Oxygen
|Faculty of Engineering & Science | |Unit Code |: |UEMK1013 | |Course |: |Chemical Engineering | |Unit Title |: |Chemistry for Engineering | |Year/ Semester |: |Year 1/ Trimester 1 | |Lecturer |: |Dr. Loh Han Chern | |Session |: |201101
Free Oxygen Alcohol Carbon dioxide
Thermochemistry IB questions 1. Ammonium nitrate‚ NH4NO3‚ dissolves readily in water according to the equation: NH4NO3(s) NH4+(aq) + NO3-(aq) H = 28kJ mol-1 Which of the following contribute(s) to the occurrence of this process? I. The system moves to lower enthalpy. II. The system becomes more disordered. a. I only b. II only c. Both I and II d. Neither I nor II 2. Which substance has the largest lattice energy? a. NaF b. KCl c. MgO d. CaS 3. A certain reaction is spontaneous
Premium Chemical bond Atom Oxygen