Module XII Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Natural occurrence of Sodium | Seawater |
Preparation of Sodium | Electrolysis of NaCl (Downs Cell) |
Use of Sodium | Preparation of Titanium TiCl4 + Na => Ti + NaCl |
Products of Na + NH3 | Na + NH3 => Na(+) + H2 + NH2(+) |
Preparation of Sodium Hydride | 2Na + H2 => 2NaH |
Used in paper industry to dissolve wood chips (Kraft process) | Na2SO4 |
Solvay Process | CO2 + NH3 + NaCl + H2O => NaHCO3 (baking soda) + NH4Cl NaHCO3 => Na2CO3(soda ash) + H20 + CO2 |
Natural occurrence of magnesium | seawater |
Extraction of magnesium hydroxide from seawater | CaCO3 (shells) =heat=> CaO (quicklime) + CO2 CaO + H2O =slaking=> Ca(OH)2 Ca(OH)2 + MgCl2 => Mg(OH)2 + CaCl2 |
Use of magnesium hydroxide | Milk of magnesia - stomachaches |
Preparation of Magnesium from magnesium hydroxide | Mg(OH)2 + HCl => MgCl2 + H2O MgCl2 =electric charge=> Mg + Cl2 |
Use of magnesium | Light structural alloys |
Grignard Reagents | Mg + CH3Br => Br-Mg-CH3 |
Structure of MgO | same as NaCl |
Melting Point of MgO compared to NaCl | Higher melting point than NaCl |
Use of MgO | Electric ranges: good conductor of heat, does not absorb bad conductor of electricity |
Natural occurrence of Aluminum (Non-silicate) | Al2O3 (Bauxite) |
Creation of Ruby/Sapphire | Replace some Al(+3) groups in Bauxite with transition metals |
Natural occurrence of Aluminum (silicate) | Beryl |
Types Of silicates (3 types) | mica, clay, talc |
Al compared to Cu (volume) | Cu is more conductive by volume |
Al compared to Cu (mass) | Al is more conductive by mass |
Preparation of Al | Hall-Heroult Process |
Amphoteric Reaction of Aluminum (acid) | 2Al + 6HCl => Al2Cl6 + 3H2 |
Amphoteric Reaction of Aluminum (base) | 2Al + 6OH(-) => 2AlO3(-3) + 3H2 |
Structure of Al2Cl6 | similar to diborane (banana bonds) |
Aluminum Spinels | M(2+)Al2O4 |
what are Ziegler-Natta Catalysts (2) | TiCl4 and Al(C2H5)3 |
What does Ziegler-Natta system do? | Polymerizes alkenes i.e. ethene -> polyethelene |
Natural Occurrence of Silicon | 26% of earth's crust |
Preparation of silicon (98% pure) | SiO2 + 2C => Si + 2CO (98% pure) |
Preparation of Silicon (99.9% pure) | Si + Cl2 => SiCl4 SiCl4 + Mg => MgCl2 + Si |
Preparation of Silicon (99.9999% pure) | zone refining |
Structure of Quartz and name | Repeating tetrahedron of Silicon surrounded by oxygens (SiO2)n |
Zircon | ZrSiO4 |
Impure forms of quartz | gems (amethyst, opal) |
Structure of Si2O7(-6) | Two tetrahedrons of Si joined by a shared oxygen (corner sharing) |
Structure of Benitoite & atoms shared | Ring of alternating silicon and oxygen; 2 atoms shared per tetrahedron Si3O9(-) |
Structure of beryl & # of oxygen atoms shared | ring of six tetrahedra with six shared oxygen atoms |
Shared atoms for chains of silicon | 2 atoms shared per tetrahedron |
Structure of double chain (asbestos) | (Si4O11)n(-6n) |
structure of single chain | (SiO3)n(-2n) |
Structure of silicon sheets (talc) | (Si2O5)n (-2n) |
Shared atoms for silicon sheets (talc) | 3 atoms shared per tetrahedron |
Creation of Mica | Replace 1/4 of Si(3+) in talc with Al(3+) |
Shared atoms for 3-D silicates | 4 atoms shared per tetrahedron |
Formation of SiF4 | HF attacks SiO2 ONLY |
What 3 halides hydrolize to SiO2 + HX? | SiCl4, SiBr4, SiI4 |
List 4 known silicon hydrides | SiH4, Si2H6, Si3H8, Si4H10 |
Preparation of silicon hydrides | SiCl4 + LiAlH4 => SiH4 + LiCl + (AlCl3)2 |
Structure of Silicon Carbide | SiC Connected tetrahedrons of C and Si, respectively surrounded by each other |
Preparation of Silicon carbide | SiO2 + 3C => SiC + 2CO |
preparation of silicones | Si + CH3Cl => (CH3)2SiCl2 (CH3)2SiCl2 + H20 => [(CH3)2SiO]n + HCl |
Structure of silicones | Bent chain of O and Si, 2 branching R groups off of silicons |
Silicone oil links | no crosslinks |
silicone rubber links | a few cross links |
silicone resins | more crosslinks |
Natural occurrence of phosphate & structure | phosphate rock Ca3(PO4)2 |
Use of phosphate rock | fertilizer |
Occurrence of phosphate in humans | ATP |
Preparation of phosphate | 2Ca3(PO4)2 + 10C + 6SiO2 => 6CaSiO3(slag) + 10CO + P4 |
Oxide of P4 with limited O2 | H3PO3 |
oxide of P4 with excess O2 | H3PO4 |
natural occurrence of sulfur | free-gulf coast in form of sulfides |
pyrite | FeS2 |
galena | PbS |
bornite | Cu3FeS3 |
zinc blende | ZnS |
occurrence of sulfur in humans | amino acids, protein |
Frasch process | molten sulfur deposits |
natural form of sulfur | S8 (overlapping squares) |
Use of Gallium | Semiconductor (GaAs) |
Property of gallium | longest liquid range of any element (30-2403 C) |
Use of Indium | photovoltaic cells |
Use of Thallium | Heavy metal poison (Tl2O) |
Use of Germanium | Semi-conductor |
Preparation of tin | SnO2(cassiterite) + 2C => Sr + CO2 |
Composition of bronze | 20% tin, 80% copper |
Composition of solder | 50% tin, 50% lead |
Tin cans | Steel coated with tin |
Octane-boosting additive to gasoline | Pb(CH2CH3)4 |
Marsh Test | H2 + H3AsO4 => AsH3 + H20 determines if arsenic is present |
Use of Antimony | Hardens lead in storage batteries |
Property of bismuth | expands on freezing |
Wood's metal (Bi) | Used as plug in sprinkler systems |
Use of bismuth | Pepto bismol (BiO)2CO3 |
Use of selenium | red color in glass (red lights) |
Use of selenium on humans | trace amounts are anti-carcinogenic |
Property of tellurium | H2Te is worst smelling inorganic compound |
property of bromine | liquid at room temperature |
natural occurrence of bromine | seawater Cl2 + Br(-) => 2Cl(-) + Br2 |
use of iodine on humans | thyroxine - growth hormone |
heat S8 rapidly | sulfur rings |
heat S8 slowly | monoclinic |
heat monoclinic sulfur | S8 rings |
heat liquid sulfur | liquid darkens |
heat dark brown liquid sulfur | S2 gas |
natural occurrence of chlorine | As NaCl |
Use of chlorine | treatment of drinking water |
preparation of chlorine (commercial) | Electrolysis of NaCl |
preparation of chlorine (lab) | HCl + MnO2 => Mn(2+) + Cl2 + H20 |
chlorine hydride | HCl (strong acid) |
main use of potassium | gunpowder |
products of K+ and NH3 | ammoniated K+ + e- |
use of rubidium | "getter" in vacuum tubes |
property of cesium | melts at 30 degrees celcius |
natural occurrence of calcium | silicates, carbonates(marble, chalk, limestone, calcite), phosphates |
calcium in nature | plats, bones, teeth |
use of calcium | glass, bricks, porcelain |
use of strontium | flames, fireworks |
use of barium | lithopone pigment BaSO4 |
Created by:
neeck
Popular Chemistry sets