Reactions with Water and Oxides.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Describe the reaction of Na with Water: | 2Na + 2H2O --> 2NaOH + H2.
The reaction is vigorous as the metal dissolves and Hydrogen Gas is violents released.
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| Describe the reaction of Cold water with Mg: | Slow reaction forming:
Mg + 2H2O --> Mg(OH)2 + H2
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| Describe the reaction of Steam with Mg: | Quick reaction:
Mg + H2O(g) ---> MgO + H2
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| Write the formula for the Oxides of Period 3 elements and their oxidation states: | Na2O (+1) : MgO (+2) : Al2O3 (+3) : SiO2 (+4) : P4O10 (+5) : SO2 (+4).
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| Describe the Reaction of Na With Oxygen: | Burns brightly with a Yellow Flame.
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| Describe the Reaction of Mg with Oxygen: | Burns brightly with a white flame.
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| Describe the Reaction of Al with Oxygen: | Al is heated first, then burns bright with white flame.
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| Describe the Reaction of Si with Oxygen: | The Si is heated alot.
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| Describe the Reaction of P with Oxygen: | Red P needs to be heated first then burns with White flame, White P ignites spontaneously with air with white flame.
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| Describe the Reaction of S with Oxygen: | Preheated then burns brightly with BLUE flame.
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| Write the formula for the substance formed when H2O reacts with the oxides from Period 3: | 2Na+ + 2OH- : Mg(OH)2 --> Mg2+ + 2OH- : H3PO4 --> H2PO4- + H+ : H2SO3 ---> HSO3- + H+ --> H2SO4 ---> H+ + HSO4-
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| What is the Ion responsible for the alkiline solutions formed when the metal oxides react with water? | They contain the O2- ion which is highly Basic and will readily accept H+ ions.
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Created by:
mjwilson1988
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