Period 3 and their oxides questions
No description yet. This curated deck is ready for daily study.
Card preview (8)
Give the displayed formula for the anion formed when sulfur trioxide reacts with water.
https://pmt.physicsandmathstutor.com/download/Chemistry/A-level/Topic-Qs/AQA/Inorganic-II/2.4-Properties-of-Period-3-Elements-and-their-Oxides/Set-J/Properties%20of%20Period%203%20Elements%20and%20their%20Oxides%20MS.pdf 1(c)
Give an equation for the reaction of magnesium with steam. State one observation made.
Mg + H2O–> MgO + H2 White solid/white powder
Give an equation to show how an excess of magnesium oxide reacts with phosphoric acid (H3PO4).
3 MgO + 2 H3PO4 → Mg3(PO4)2 + 3 H2O
Give an equation for the reaction of aluminium oxide with sulfuric acid.
Al2O3 + 3H2SO4 → Al2(SO4)3 + 3H2O
Identify a reagent or test that could be used to distinguish between aqueous solutions of sulfur dioxide and sulfur trioxide with the same concentrations. State the observation in each case.
any named metal carbonate (or formula) or Mg or Ca or Zn SO2(aq) slower effervescence SO3(aq) faster effervescence
The mass spectrum of the element phosphorus has a peak at m/z = 124 Give the formula of the species responsible for this peak.
31P4^+
Give an equation for the reaction of phosphorus(V) oxide with sodium hydroxide solution.
P4O10 + 12 NaOH → 4 Na3PO4 + 6 H2O