Period 3 Elements – Flashcards
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| What would be observed when Sodium burns in oxygen? |
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| Yellow flame |
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| What would be observed when Magnesium burns in oxygen? |
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| white flame / white light solid / powder / smoke / ash / white fumes |
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| What would be observed when Aluminium burns in oxygen? |
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| White flame |
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| What would be observed when Silicon burns in oxygen? |
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| White flame White smoke |
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| What would be observed when Phosphorus burns in oxygen? |
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| White flame Smoke |
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| What would be observed when Sulphur burns in oxygen? |
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| blue flame fumes or misty or pungent/choking/smelly gas |
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| What is the equation for the reaction that takes place when Sodium burns in oxygen? |
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| 4Na + O2 -> 2Na2O |
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| What is the equation for the reaction that takes place when Magnesium burns in oxygen? |
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| 2Mg + O2 -> 2MgO |
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| What is the equation for the reaction that takes place when Aluminium burns in oxygen? |
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| 4Al + 3O2 -> 2Al2O3 |
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| What is the equation for the reaction that takes place when Silicon burns in oxygen? |
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| Si + O2 -> SiO2 |
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| What is the equation for the reaction that takes place when Phosphorus burns in oxygen? |
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| 4P + 5O2 -> P4O10 |
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| What is the equation for the reaction that takes place when Sulphur burns in oxygen? |
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| S + O2 -> SO2 |
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| What is the bonding in Sodium oxide? |
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| Ionic |
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| What is the bonding in Magnesium oxide? |
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| Ionic |
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| What is the bonding in Aluminium oxide? |
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| Ionic |
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| What is the bonding in Silicon oxide? |
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| Covalent |
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| What is the bonding in Phosphorus oxide? |
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| Covalent |
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| What is the bonding in Sulphur dioxide? |
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| Covalent |
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| What are the properties of Sodium? |
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| Soft, silver, shiny Conducts electricity |
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| What are the properties of Magnesium? |
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| Soft, silver, shiny Conducts electricity |
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| What are the properties of Aluminium? |
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| Easily malleable, silver, shiny Conducts electricity |
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| What are the properties of Silicon? |
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| Hard, grey-blue solid Partial conductor of electricity (check this) |
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| What are the properties of Phosphorus? |
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| Red or white solid, low melting and boiling point Doesn't conduct electricity |
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| What are the properties of Sulphur? |
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| Yellow solid, low melting and boiling point Doesn't conduct electricity |
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| What are the properties of Chlorine? |
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| Green gas, low melting and boiling point Doesn't conduct electricity |
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| What are the properties of Argon? |
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| Colourless, odourless gas Unreactive |
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| What are the observations when Sodium reacts with water? |
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| Violent reaction Hydrogen released |
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| What are the observations when Magnesium reacts with water? |
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| Slow reaction Hydrogen released |
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| What are the observations when Magnesium reacts with steam? |
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| Fast reaction Hydrogen released |
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| What are the observations when Chlorine reacts with water? |
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| Chlorine dissolves Hydrochloric acid formed Chloric acid formed |
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| What is the equation for the reaction of Sodium with water? |
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| 2Na(s) + 2H2O(l) -> 2NaOH(aq) + H2(g) |
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| What is the equation for the reaction of magnesium with water? |
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| Mg(s) + 2H2O(l) -> Mg(OH)2(aq) + H2(g) |
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| What is the equation for the reaction of magnesium with steam? |
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| Mg(s) + H2O(g) -> MgO(s) + H2(g) |
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| What is the equation for the reaction of Chlorine with water? |
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| Cl2(aq) + H2O(l) HClO(aq) + HCl(aq) |
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| What are the properties of sodium oxide? |
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| White High melting point (1548K) |
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| What are the properties of the magnesium oxide? |
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| White High melting point (3125K) |
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| What are the properties of the Aluminium oxide? |
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| White High melting point (2345K) |
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| What are the properties of the Silicon oxide? |
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| White High melting point (1883K) |
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| What are the properties of the Phosphorus oxide? |
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| Low melting point (573K) |
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| What are the properties of the Sulphur oxide? |
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| Low melting point (200 for SO2, 290K for SO3) |
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| What is the structure of the sodium oxide? |
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| Giant ionic |
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| What is the structure of the magnesium oxide? |
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| Giant ionic |
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| What is the structure of the aluminium oxide? |
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| Giant ionic |
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| What is the structure of the silicon oxide? |
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| Giant covalent / Macromolecular |
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| What is the structure of the phosphorus oxide? |
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| Molecular |
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| What is the structure of the sulphur oxide? |
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| Molecular |
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| What is observed when the sodium oxide is reacted with water? |
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| Strongly alkaline solution formed pH 13-14 |
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| What is observed when the magnesium oxide is reacted with water? |
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| Weakly alkaline solution formed pH 10 |
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| What is observed when the aluminium oxide is reacted with water? |
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| No reaction |
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| What is observed when the silicon oxide is reacted with water? |
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| No reaction |
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| What is observed when the phosphorus oxide is reacted with water? |
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| Strongly acidic solution produced pH 0-1 |
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| What is observed when sulphur dioxide is reacted with water? |
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| Acidic solution produced pH 2-3 |
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| What is observed when sulphur trioxide is reacted with water? |
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| White foggy droplets of acid form pH 0-1 |
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| What is the equation for reaction of water with the sodium oxide? |
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| Na2O + H2O -> Na+ + 2OH- |
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| What is the equation/s for reaction of water with the magnesium oxide? |
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| Mg + H2O -> Mg(OH)2 Mg(OH)2 -> Mg2+ + 2OH- |
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| What is the equation for reaction of water with the Aluminium oxide? |
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| No reaction |
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| What is the equation for reaction of water with the silicon oxide? |
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| No reaction |
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| What is the equation for reaction of water with the phosphorus oxide? |
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| P4O10 + 6H2O -> 4H3PO4 |
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| What is the equation/s for reaction of water with sulphur dioxide? |
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| SO2 + H2O -> H2SO3 H2SO3 -> H+ + HSO3- |
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| What is the equation/s for reaction of water with sulphur trioxide? |
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| SO3 + H2O -> H2SO4 H2SO4 -> H+ + HSO4- |
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| What is the equation for the reaction that occurs when sodium oxide reacts with hydrochloric acid? |
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| Na2O + 2HCl -> 2NaCl + H2O |
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| What is the equation for the reaction that occurs when magnesium oxide reacts with sulphuric acid? |
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| MgO + H2SO4 -> MgSO4 + H2O |
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| What is the equation for the reaction that occurs when aluminium oxide reacts with sulphuric acid? |
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| Al2O3 + 3H2SO4 -> Al2(SO4)3 + 3H2O |
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| What is the equation for the reaction that occurs when aluminium oxide reacts with hot, concentrated sodium hydroxide (and water)? |
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| Al2O3 + 2NaOH + 3H2O -; 2NaAl(OH)4 |
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| What is the equation for the reaction that occurs when aluminium oxide reacts with hydrochloric acid? |
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| Al2O3 + 6H+ -> 2Al3+ + 3H2O |
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| What is the equation for the reaction that occurs when aluminium oxide reacts with sodium hydroxide? |
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| Al2O3 + 2OH– + 3H2O -> 2Al(OH)4– |
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| What is the equation for the reaction that occurs when silicon oxide reacts with hot, concentrated sodium hydroxide? |
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| SiO2 + 2NaOH -; Na2SiO3 + H20 |
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| What is the equation for the reaction that occurs when phosphorus oxide reacts with hot, concentrated sodium hydroxide? |
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| 12NaOH + P4O10 -; 4Na3PO4 + 6H2O |
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| What is the equation/s for the reaction that occurs when sulphur dioxide reacts with sodium hydroxide? |
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| SO2 + NaOH -> NaHSO3 NaHSO3 + NaOH -> Na2SO3 + H2O |
