sodium reaction with water

• Qex

  4 Dec 07, 21:46

  hi I wanna ask huh
  
  2 Na + 2 H2O -----> 2 NaOH + H2
  
  How come sodium reacts with water is this equation huh?
  
  Shouldnt it be
  Na + H20 -------> NaO + H2 ??
  
  why must put coefficient of 2 in front?
  
• Hocklez

  4 Dec 07, 22:01

  under periodicity.
  
  sodium will react violent in water to form alkaline solution. this is under aqueous.
  
  Shouldnt it be
  Na + H20 -------> NaO + H2 ??
  
  why must put coefficient of 2 in front?
  
  sodium burns with O2, will create Na2O. Na is 1+, O is 2-
  
  Burn use O2, react with water use H20. both are different, product will be different.
  
  You can't get Na2O from reacting with water since Na2O is powdery.
  
  sorry for the so confusing explanation.
• Darkness_hacker99

  4 Dec 07, 23:39

  Originally posted by Qex:

  hi I wanna ask huh
  
  2 Na + 2 H2O -----> 2 NaOH + H2
  
  How come sodium reacts with water is this equation huh?
  
  Shouldnt it be
  2Na + H20 -------> NaO + H2 ??
  
  why must put coefficient of 2 in front?
  

  At O level:
  
  Sodium react with Steam, H2O(g)
  
  2Na(s) + H2O(g) -> Na2O(s) + H2(g)
  
  Sodium react with (Cold) water, H2O(l)
  
  2Na(s) + 2H2O(l) -> 2NaOH(aq) + H2(g)
  
  This has been discuss many times already due to the complexity and complication at higher level, so for O level.. this will be it.
• Darkness_hacker99

  4 Dec 07, 23:42

  Originally posted by Qex:

  hi I wanna ask huh
  
  2 Na + 2 H2O -----> 2 NaOH + H2
  
  How come sodium reacts with water is this equation huh?
  
  Shouldnt it be
  Na + H20 -------> NaO + H2 ??
  
  why must put coefficient of 2 in front?
  

  The first chemical equation is for H2O(water), which will produced Sodium hydroxide and hydrogen gas.
  
  On the other hand, the second chemical equation is for H2O(gas), which will produce sodium oxide and hydrogen.
• Hocklez

  5 Dec 07, 12:54

  Originally posted by Darkness_hacker99:
  
  
  At O level:
  
  Sodium react with [b]Steam, H2O(g)
  
  Na(s) + H2O(g) -> NaO(s) + H2(g)
  
  Sodium react with (Cold) water, H2O(l)
  
  2Na(s) + 2H2O(l) -> 2NaOH(aq) + H2(g)
  
  This has been discuss many times already due to the complexity and complication at higher level, so for O level.. this will be it. [/b]

  you created NaO?
• Darkness_hacker99

  5 Dec 07, 14:24

  Originally posted by Hocklez:

  you created NaO?

  I created careless mistake.
  
  Thanks for pointing out.
• gunner77

  5 Dec 07, 21:26

  metal react with water give u metal hydroxide lor
• ultranova3

  5 Dec 07, 22:30

  Na2O reacts immediately with water to produce NaOH.
  
  You will never get Na2O by reacting Na with H2O.
  
  Reacting Na with O2 will give you Na2O and Na2O2 (sodium peroxide).
  
  For the case of Potassium, K + O2 will give you K2O and/or K2O2 and/or KO2 (potassium superoxide). This property of peroxide and superoxide are only limited to group I metal except Li (due to diagonal relationship, Li compounds behaves more like Mg compounds)
• Darkness_hacker99

  6 Dec 07, 16:36

  Aiyo all..
  
  This question has been discuss many times already.
• wishboy

  7 Dec 07, 00:18

  Originally posted by gunner77:

  metal react with water give u metal hydroxide lor

  not all leh
  those with reactivity below that of sodium wont give that reaction
• unclebutcher

  7 Dec 07, 01:36

  Originally posted by wishboy:

  not all leh
  those with reactivity below that of sodium wont give that reaction

  only grp I metal react wif water give u hydroxide
• Hocklez

  7 Dec 07, 22:33

  Originally posted by Darkness_hacker99:

  Aiyo all..
  
  This question has been discuss many times already.

  u know it happens but u donno why it does happen this way...