AQA A Level Chemistry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| show | 2Na(s) + H2O(aq) → 2NaOH(aq) + H2(g)
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| Which product determines the pH of the solution formed when sodium reacts with water. | show 🗑
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| What pH is the solution formed after sodium reacts with water? | show 🗑
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| Why does sodium melt into a ball when it reacts with water | show 🗑
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| show | Na is more reactive, Mg contains stronger metallic bonds, due to the metal ions having a higher charge and being smaller and because there are more delocalised electrons
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| show | The metallic bonding in magensium is stronger causing the activation energy of the reaction to be high
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| show | Mg(s) + H2O(g) → MgO(s) + H2(g)
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| show | Na(s) + O2(g) → Na2O(s)
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| Write a balanced equation for magnesium reacting with oxygen, including state symbols | show 🗑
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| Write a balanced equation for aluminium reacting with oxygen, including state symbols | show 🗑
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| show | Si(s) + O2(g) → SiO2(s)
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| show | 4P(s) + 5O2(g) → P4O10(s)
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| show | S(s) + O2(g) → SO2(g)
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| Write a balanced equation for sulfur reacting with oxygen to form sulfur trioxide, including state symbols | show 🗑
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| Describe the structure and bonding in sodium, magensium and aluminium oxide | show 🗑
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| show | mpt of MgO is higher because the metal ion is smaller with a higher charge resulting in greater electrostatic forces between oppositely charged ions
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| Describe and explain the difference in the mpt of magensium and aluminium oxide | show 🗑
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| Describe the structure and bonding in silicon dioxide | show 🗑
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| show | due to giant covalent structure, strong covalent bonds need to be broken which requires a lot of energy
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| Describe the structure and bonding of phosphorus and sulfur oxides | show 🗑
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| Which has a higher mpt P4O10 or SO2. Explain your answer | show 🗑
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| Which period 3 oxides are basic? | show 🗑
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| show | Na2O(s) + 2H2O(l) → 2NaOH(aq)
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| show | MgO(s) + 2H2O(l) → Mg(OH)2(aq)
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| show | About 8-10
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| Why does NaO dissolve to make an alkaline solution? | show 🗑
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| show | MgO is only slightly soluble, due to a higher lattice enthalpy. The concentration of O2- ions in solution are low therefore the OH- concentration is low, making the solution only slightly alkaline
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| What is the pH of the solution when Al2O3 is mixed with water and why | show 🗑
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| show | 7, as it is insoluble due giant covalent structure which needs a large amount of energy to break
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| show | phosphorus and sulfur oxides
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| show | P4O10(s) + 6H2O(l) → 4H3PO4(aq)
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| Write a balanced equation for sulfur dioxide reacting with water, including state symbols | show 🗑
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| show | SO3(g) + H2O(l) → H2SO4(aq)
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| show | H2SO4(aq) → 2H+(aq) + SO42-(aq)
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| show | H2SO3 (aq)→ H+(aq) + HSO3-(aq)
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| Write a balanced equation including state symbols to show how phosphoric acid dissociates into its ions in solution | show 🗑
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| show | sodium and magensium oxides
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| Write a balanced equation including state symbols to show how sodium oxide reacts with hydrochloric acid | show 🗑
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| show | Na2O(s) + H2SO4(aq) → Na2SO4(aq) + H2O(l)
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| show | MgO(s) +2HCl(aq) → MgCl2(aq) + H2O(l)
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| show | MgO(s) + H2SO4(aq) → MgSO4(aq) + H2O(l)
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| show | phosphorus and sulfur oxides
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| Write a balanced equation including state symbols to show how silicon dioxide reacts with sodium hydroxide | show 🗑
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| show | P4O10(s) + 12NaOH(aq) → 4Na3PO4(aq) + 6H2O(l)
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| Write a balanced equation including state symbols to show how sulfur dioxide reacts with sodium hydroxide | show 🗑
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| show | SO3(g) + 2NaOH(aq) → Na2SO4(aq) + H2O(l)
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| What does amphoteric mean? | show 🗑
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| Which period 3 oxide is amphoteric and why? | show 🗑
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| show | Al2O3 + 6NaOH (aq) 3H2O(l) → 2NaAl(OH)4(aq)
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| show | Al2O3 + 3H2SO4(aq) → Al2(SO4)3 (aq) + 3H2O(l)
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| Write a balanced equation including state symbols to show how aluminium oxide reacts with hydrochloric acid | show 🗑
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