Discussion The reactivity series is a list of metals arranged in order of their reactivity based on displacement reactions‚ reduction of their oxides by hydrogen or carbon‚ the relative ease of decomposition of their compounds and reactions with oxygen‚ dilute acids and water. The higher up a metal is in the reactivity series‚ the more reactive it is. In the experiment conducted‚ the three metals‚ magnesium‚ zinc and copper each had to undergo displacement reactions and reactions with water‚ oxygen
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Reactions of pyridine Introduction: 1. Pyridine structure: 2. Iupac name: Pyridine‚ other name: Azine & Azabenzene. *Important commercial alkyl pyridinium compound is α - methyl- pyridine (2)‚ βpicoline (3)‚ γ- picoline ( 4 ) ‚ 2‚6 - lutidine ( 5 ) ‚ 3‚5 - dimethyl- pyridine ( 6 ) ethyl-2 - methyl- pyridine ( 7 ) and 2‚4‚6 - collidine ( 8 ) . In general‚ the alkyl -substituted pyridine as many other precursors used in pyridine E-commerce. From these further alkyl substituted pyridine
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Elements Atomic No At. Mass Valency Elements At.No. At.Mass Valency Hydrogen(H) 1 1 (+1) Silicon(Si) 14 28 (+4) Lithium(Li) 3 7 (+1) Germanium(Ge) 32 73 (+4) Sodim(Na) 11 23 (+1) Tin(Sn) 50 119 (+4‚+2) Potassium(K) 19 39 (+1) Lead(Pb) 82 207 (+4‚+2) Rubidium(Rb) 37 85 (+1) Nitrogen(N) 7 14 (-3‚+5) Cesium(Cs) 55 133 (+1) Phosphorus(P) 15 31 (+3‚+5) Francium(Fr) 87 223 (+1) Arsenic(Ar) 33 75 (+3) Beryllium(Be) 4 9 (+2) Antimony(Sb)
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CSEC CHEMISTRY NOTES ON PERIODIC TRENDS From Chemistry for CSEC by Tania Chung-Harris and Mike Taylor Chemistry for CAPE by Susan Maraj and Arnold Samai Periodic Trends in Group II Elements in Group II The elements in Group II are called alkaline earth metals. Be‚ Mg‚ Ca‚ Sr‚ Ba‚ Ra Beryllium‚ Magnesium‚ Calcium‚ Strontium‚ Barium‚ Radium These elements bond by metallic bonds (intramolecular forces) to form giant metallic structures. The size of the
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these suns move closer together the radiant shine would be the valence. The closer they get the ray of light overlaps and they share light. If an atom can share valence electrons it can form a bond. Two hydrogen atoms make hydrogen molecule‚ two oxygen atoms make an oxygen molecule‚ and two hydrogen atoms
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through the addition of hydrobromic acid (HBr) and hydrogen peroxide (H2O2). This experiment was a greener bromination of stilbene because bromine was generated in situ and ethanol was used as the solvent. The melting point (243.30°C)‚ mass (.427g)‚ and percent yield (45.54) of the crystals were recorded. The FTIR was used to confirm that the product was produced. The peaks on the HNMR revealed the presence of aliphatic and aromatic hydrogens and were used to verify the identity of the product
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yield us silver chloride which is a solid. We did note on our observation that we had a change in color and a solid precipitate. 3. Na2CO3(aq)+ HCl(aq) → NaCl(aq) + HCO3(aq) Na2CO3 + 2HCl → 2NaCl + H2O + CO2(aq) 2Na+ + CO32- + 2H+ + 2Cl- → 2Na+ + 2Cl- + H2O + CO2 CO32- + 2H+ → H2O(l) + CO2(g) With this reaction the carbonate and the diatomic hydrogen combined together to make the bubbling effect that we had noted. This leaves us with the water molecule with the sodium chloride dissolved in it
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electrolysis of water into oxygen and hydrogen gas is an example of a decomposition reaction. Double-replacement reaction is a chemical change involving the exchange of ions between two compounds. These reactions usually take place between two ionic compounds in water solutions and are shown by production of precipitate. An example of a double displacement reaction occurs between sodium chloride and silver nitrate to form sodium nitrate and silver chloride. Chemical reactions are used
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replace Hydrogen because it is more reactive. Copper + Hydrochloric Acid: Copper will not displace Hydrogen because copper is more reactive. Magnesium + Hydrochloric acid: Magnesium will displace Hydrogen because it is more reactive and end up as Magnesium Chloride + Hydrogen. Sodium + Hydrochloric acid: Sodium will displace Hydrogen because it is more reactive and end up as Sodium Chloride + Hydrogen. Apparatus:
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developed extensive oil holdings in North Africa and the Middle East‚ as well as significant coal beds in the western United States. In 1979‚ Pacific Oil established the first major contract with the Reliant Corporation for the purchase of vinyl chloride monomer. The Reliant Corporation was a major industrial manufacturer of wood and petrochemical products for the construction industry. Reliant was expanding its manufacturing operations in the production of plastic pipe and pipe fittings‚ particularly
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