Doc Brown's Chemistry - Alphabetical Index  S   

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s block elements : ADVANCED detailed notes on Group 1-2 Metals : AS basic m/c Quiz : 

sacrificial corrosion : GCSE-ADVAN(basic) stopping iron/steel rusting : 

safety - health issues : Nanoscience - health and safety issues :

'salt', 'common table salt' : see sodium chloride : 

salt hydrolysis : ADVANCED examples explained (also use top sub-index) :

Salters/OCR exam board : GCSE Science-Chemistry support-help links : Salters Advanced Chemistry AS homepage : A2 homepage : Revision index : 

salts : GCSE-ADVAN(basic) general solubility rules : GCSE-ADVAN(basic) soluble salt preparation by neutralisation : GCSE-ADVAN(basic) preparation by direct synthesis-combination of elements/precipitation :  Qualitative tests for salts via cations + anions (use top index) :

sandstone - sedimentary rock : KS3-GCSE rock formation : 

samarium, Sm :

saponification : Basic Organic Notes section 5c Reaction forming soap from oils/fats :

saturated molecules : GCSE alkanes-structure-uses : GCSE alkanes-extra organic chemistry : ADVANCED Functional Groups :

saturated solution : GCSE explained-solubility or KS3-GCSE e.g. in salt purification-crystallisation : 

scandium, Sc : GCSE-notes-transition metals : GCSE-position in periodic table : GCSE-ADVANCED data : ADVANCED detailed notes 3d-block : ADVANCED Scandium :

scale-limescale : GCSE hard/soft water : 

schist - metamorphic rock : GCSE formation : 

scum : GCSE hard/soft water : 

seaborgium, Sg :

secondary - classification of organic molecules (or protein structure) : ADVANCED explained : ADVANCED alcohols : ADVANCED halogenoalkanes : ADVANCED amides : ADVANCED protein structure : ADVANCED aromatic amines-structure-naming : ADVANCED more examples of organic-nitrogen-compounds-naming-structure : 

secondary, primary and fuel cells/batteries : ADVANCED notes - examples explained (also use top 7. sub-index) :

sedimentary rocks/sedimentation : GCSE Earth Science notes :

selenium, Se : GCSE-AS metalloid/semi-metal use note :

self-healing materials : Smart materials - SELF-HEALING MATERIALS :

self-ionization : ADVANCED of water : ADVANCED of ammonia :

semi-metals/metalloids : GCSE-AS properties/uses notes :

separating funnel : KS3-GCSE-AS description-diagram-uses of :

separation of mixtures : KS3-GCSE notes on methods : KS3 easy quiz :

series : GCSE Transition Metals : GCSE metal reactivity : 

shale - sedimentary rock : GCSE rock formation : 

shapes of molecules : GCSE-ADVAN(basic) covalent bonding notes : AS examples, names, ox electron diagrams, bond angles : 

shells of electrons : GCSE-ADVAN(basic) atomic structure : GCSE outer shell related to reactivity - Gp7 Halogen reactivity or Gp1 Alkali Metal reactivity or ionic/covalent bonding : 

shape memory alloys : Smart materials - SHAPE MEMORY ALLOYS :

shape memory polymers : Smart materials SHAPE MEMORY POLYMERS :

shift of electrons : ADVANCED organic mechanisms : 

'shortened' structural formula/formulae : ADVANCED explained using alkane examples :

sievert : unit of radioactivity : 

silane, SiH_4(g) : GCSE-AS molecule-bonding : AS shape-bond angle : 

silica : see silicon dioxide below

silicon, Si : position and group in periodic table : GCSE-AS metalloid/semi-metal use note : GCSE-AS structure and bonding :

silicon dioxide, silicon(IV) oxide, silica, SiO_2(s) : GCSE-AS giant covalent structure - bonding and properties : 

silicon hydride, SiH₄ :  ADVANCED molecule shape, bond angle, dot & cross electronic diagram :

silver, Ag, compounds : GCSE- lack of reactivity/displacement : GCSE-ADVAN(basic) silver salts-photography : GCSE-ADVAN(basic) electroplating : silver nanoparticle uses :

silver nitrate, AgNO₃ : ADVAN-estimation of chloride silver nitrate titration Q's :

simple cell - battery : GCSE-ADVAN(basic) simple design and explanation : 

simple molecules : GCSE-AS covalent bonding notes :

simple distillation : GCSE-KS3 explanation-examples : 

single bonds : GCSE-AS covalent bond explained : GCSE e.g. in alkanes-oil product hydrocarbons : 

skeletal formula/formulae : ADVANCED explained using alkane examples : ADVANCED explained-examples-links homologous series : 

slag : GCSE-AS formation in blast furnace : 

slaked lime, calcium hydroxide, Ca(OH)_2(s) : GCSE-AS formation and uses :

slate - metamorphic rock : GCSE formation : 

Smithsonite/calamine ore (zinc carbonate) : GCSE effect of heating/zinc metal extraction :

S_N1 and S_N2 : ADVANCED organic mechanisms : ADVANCED halogenoalkane nucleophilic substitution mechanisms :

soapless detergents : GCSE hard/soft water : 

soaps-detergents : GCSE effect with hard water : GCSE making soap :

sodium and compounds, Na , in  Group 1 The Alkali Metals : GCSE-data-properties-chemical reactions-uses : GCSE-AS electrolytic extraction of sodium : GCSE-reactivity-reactions involving oxygen/water/acids/displacement : ADVANCED data : ADVANCED detailed notes on Group 1 elements/compounds : Qualitative tests for salts via cations + anions (use top index) :

sodium bicarbonate : see sodium hydrogencarbonate

sodium borohydride

sodium bromide, NaBr: 

sodium carbonate, Na₂CO_3(s), Na₂CO₃.10H₂O_(s) hydrated crystals - washing soda : GCSE used in softening hard water : ADVANCED use in volumetric titrations :

sodium chlorate(I), (sodium hypochlorite), NaOCl_(aq) : GCSE uses of chlorine - bleaches :

sodium chloride, 'common salt', 'salt', NaCl_(s), [brine, NaCl_(aq)] : KS3-GCSE formation-neutralisation : GCSE-ADVAN(basic) ionic bonding-structure-properties : GCSE Group 7 Halogen salt-brine electrolysis, production and uses of products :  GCSE formation from neutralisation : GCSE electrolysis experiments : Qualitative tests for salts via cations + anions (use top index) :

sodium fluoride, NaF : 

sodium hydrogencarbonate, NaHCO_3(s), 'bicarbonate of soda', 'bicarb' : GCSE reactions with acids : GCSE use as raising agent in cooking : 

sodium hydrogensulphate, sodium hydrogensulfate, NaHSO₄ : 

sodium hydroxide, NaOH : KS3-GCSE reaction with acids : GCSE salt-brine electrolysis - production-uses of products : ADVANCED use in volumetric titrations :

sodium hypochlorite : see sodium chlorate(I) above

sodium iodide, NaI : 

sodium nitrate, sodium nitrate(V), NaNO₃ : 

sodium nitrite, sodium nitrate(III), NaNO₂ : ADVANCED titration of with potassium manganate(VII) calculation :

sodium oxide, Na₂O :  

sodium tetrahydridoborate(III), NaBH₄ (sodium borohydride) : ADVANCED reduction of organic compounds :

sodium thiosulfate - see sodium thiosulphate below

sodium thiosulphate, Na₂S₂O₃, 'thio' : GCSE-ADVAN(basic) rate of reaction experiment with acid : ADVANCED acid reaction kinetics : ADVANCED volumetric iodine titration calculations : 

soft (and water) water : GCSE explained-examples and types-treatments

solder : 

solids : KS3-GCSE-ADVAN(basic) kinetic particle theory/ properties/diagrams : GCSE m/c Quiz : identity tests for : 

sols : GCSE explained-examples and types

solubility : (KS3)GCSE-AS explained-examples-rules-graphs-salt curves-general rules for  salts/oxides/hydroxides/carbonates :  ADVANCED solubility of organic compounds and intermolecular forces (Equilibria section 8.7) : Henry's Law : ADVANCED solubility of gases, Henry's Law

solubility product : ADVANCED equilibrium and calculations :

soluble : GCSE-KS3 word explained and examples or e.g. in salt purification : GCSE-KS3 particle pictures :

solute : GCSE-KS3 word explained and examples or e.g. in salt purification : GCSE-KS3 particle pictures :

solution : GCSE-KS3 word explained and examples or e.g. in salt purification : GCSE-KS3 particle pictures :

solvents : GCSE-KS3 word explained and examples or e.g. in salt purification : GCSE-KS3 particle pictures : ADVANCED solubility of organic compounds (Equilibria section 8.7) :

solvent extraction : KS3-GCSE simple example : ADVANCED solute distribution between two immiscible liquids, partition coefficient , calculations and uses :

soot-carbon : GCSE-ADVAN(basic) burning oil products-hydrocarbon-fossil fuels-incomplete combustion pollution : 

Spandex-Lycra : Materials science Materials science - LYCRA-SPANDEX :

spectroscopy : ADVANCED Introduction to mass spectrometry : ADVANCED Hydrogen Spectrum :

sphalerite/zinc blende ore : GCSE zinc metal extraction :

spontaneous ? : KS3-GCSE combustion : ADVANCED thermodynamically feasible :

SQA Scottish exam board : Science-Chemistry support-help links : 

stability constant : ADVANCED notes on stability Constants and entropy changes :

stainless steel : GCSE iron-chromium-nickel alloys : 

standard hydrogen electrode :  ADVANCED explained (also use top 7. sub-index) :

starch : GCSE-A(basic) structure : 

state symbols e.g. in equations : GCSE explained-examples : 

states of matter - gas/liquid/solid :KS3 easy quiz : GCSE-ADVAN(basic) detailed notes on kinetic particle theory and their properties : GCSE m/c Quiz : 

steam distillation : ADVANCED theory and practice : ADVANCED use in phenylamine preparation-diagrams :

steel : GCSE making steel : A Level notes - steel making : GCSE metal reactivity-rust prevention : GCSE Transition Metal uses : 

stereoisomerism/stereochemistry : ADVANCED detailed notes-examples on geometrical/optical/amino acids-protein-enzyme structure-function (use top isomerism index) : 

stereoregular polymers : ADVANCED stereoregular-atactic/isotactic/syndiotactic forms :

stereospecific/stereospecificity : ADVANCED stereospecificity of enzyme function : ADVANCED stereospecific organic reactions explained : 

steric hindrance : ADVANCED explained for organic reactions : 

steroids : GCSE-AS cholesterol structure : 

stings - bee/wasp treatment : KS3-GCSE explained-treatment : 

stirring : GCSE-ADVAN(basic) rates of reaction factor : 

strong acids/bases/alkalis : GCSE-ADVAN(basic) examples-explained : ADVANCED detailed advanced theory notes and calculations (use sub-index 5. near top of page) :

strontium and compounds, Sr : ADVANCED detailed notes s-block Gp 1/2 elements/compounds : : 

structural formula : GCSE e.g. hydrocarbons-oil products : GCSE extra organic chemistry : ADVANCED explained using alkane examples : ADVANCED various styles : 

structural isomerism : ADVANCED detailed notes-examples of chain, positional, functional group isomerism and tautomerism : 

structural materials : GCSE polymer-structure-uses : GCSE polymer-bonding : GCSE-ADVAN(basic) metal-bonding-structure- properties : GCSE using metals steel/titanium/aluminium/alloys : 

subduction : GCSE Earth Science notes : 

sublimation/sublime (physical state change) : KS3-GCSE explained-examples : 

substitution : GCSE simple example explained : ADVANCED explained for organic reactions : 

sucrose : GCSE-A(basic) structure : 

sugars : GCSE structure : GCSE effect of conc. sulphuric acid : 

sulfate/sulphate/sulphate(VI), SO₄^2- : Test for : ADVANCED shape-bond angle, dot & cross diagram :

sulfides/sulphides : GCSE ores for metal extraction copper or zinc : ADVANCED acid-base reaction with acids to form H₂S :

sulfite/sulphite/sulphate(IV), SO₃^2- : Test for : ADVANCED oxidation with halogen : ADVANCED shape-bond angle, dot & cross diagram :

sulfonation/sulphonation and sulfonic/sulphonic acids : ADVANCED aromatic compound formation mechanisms  : ADVANCED aromatic-structure-naming : 

sulfur(VI) fluoride (sulphur hexafluoride), SiH₄ :  ADVANCED molecule shape, bond angle, dot & cross electronic diagram :

sulfuric acid - see sulphuric acid below

sunblockers, sunscreens, suncreams : sunscreens-sunblockers - titanium dioxide :

sulphate/sulphite - see sulfate/sulfite above

sulphides : see sulfides above

sulphur/sulfur, S :position and group in periodic table :  

sulphur dioxide,  or sulphur(IV) oxide, SO_2(g) : Test for : GCSE fossil fuel burning-pollution : SO₂ gas preparation and collection : GCSE formation-use in Contact Process : ADVANCED oxidation with halogen : ADVANCED shape-bond angle, dot & cross diagram : Qualitative tests for gases :

sulphur trioxide,  or sulphur(VI) oxide, SO_3(g) : GCSE fossil fuel burning-pollution : GCSE formation-use in Contact Process : ADVANCED shape-bond angle, dot & cross diagram :

sulphuric acid H₂SO_4(l,aq) : GCSE dilute-reactions with metals/oxides/hydroxides/carbonates/ammonia and equation practice with answers : GCSE dilute-reaction with metals-reactivity series : GCSE uses-manufacture-Contact Process, concentrated-reactions with sugar/hydrated copper sulphate/alcohol/ester catalyst : ADVANCED use in volumetric titrations :

sunscreens/sunblockers/suncreams : sunscreens/suncreams/sunblockers as an example of the science of formulation chemistry : nanochemistry - sunscreens-sunblockers * titanium dioxide nanoparticles :

surface area - particle size of solid reactant : GCSE-ADVAN(basic) rates of reaction factor : 

symbols : of the elements : GCSE-ADVAN(basic) use in equations : state symbols : 

symmetrical alkenes : ADVANCED explained - organic reactions : 

syndiotactic poly(propene) : ADVANCED stereoregular-atactic/isotactic/syndiotactic : 

synthesis : KS3-GCSE-AS as type of reaction : 

synthetic polymers : GCSE formation-uses-products from oil : GCSE using plastics-problems : GCSE extra organic man-made polymers : GCSE poly(ethene) : GCSE poly(propene) : GCSE poly(chloroethene) PVC  : GCSE-ADVAN(basic) bonding, structure and properties : 

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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z * 1st time user notes

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