Holiday Highlight F4KIM by YENTE UNISTA MD DOM https://padlet.com/udyente/uf7fqbtso9ul Please double click on the padlet to paste or to open the file en-us 2017-05-22 07:32:54 UTC 2017-06-22 04:13:38 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Beartoy.png CHEMISTRY https://padlet.com/udyente/uf7fqbtso9ul/wish/173076630 Q1 Write a chemical equation for each        of the following reactions. 

a)      A solution of silver nitrate is 
         added to a solution of sodium 
         chloride. A precipitate of silver 
         chloride and a solution of    
         sodium nitrate are produce.
b)      When solid lead(II) carbonate is  
          heated strongly, it decomposes 
          into solid lead(II) oxide and 
          carbon dioxide gas is released.
c)       Nitrogen gas reacts with 
           hydrogen gas to produce 
           ammonia gas.
d)      Solid calcium oxide dissolves in 
          hydrochloric acid, producing 
          calcium chloride solution and 
          water. 
e)      Sulphur trioxide gas + water →  
          sulphuric acid.
 
Q2 The following equation shows the
      decomposition of potassium
      chlorate(V) by heat.
       KClO3 (s) → KCl (s) + O2 (g)

a)     Balance the equation.
b)     Based on the balanced equation,           find the volume of oxygen 
         produced at room conditions 
         from the decomposition of 24.5 
         g of potassium chlorate(V).
         [Relative atomic mass: O, 16; Cl,
         35.5; K, 39. Molar volume: 24 dm3
         mol-1 at room conditions]

]]> 2017-05-22 07:32:54 UTC https://padlet.com/udyente/uf7fqbtso9ul/wish/173076630 TUGASAN CUTI HARI RAYA AIDILFITRI wong80184 https://padlet.com/udyente/uf7fqbtso9ul/wish/177163184 1. What is meant by electrolytes, non- electrolytes and electrode.
                                            [3 mark]
2. Describe electrolyte ionisation in molten state and aqueous state. Give example and half equation for each state.
                                            [6 mark]
3. Determine what happenned at anode and cathode of electrolysis of molten lead(II) bromide. [8 mark]]]> 2017-06-22 04:07:17 UTC https://padlet.com/udyente/uf7fqbtso9ul/wish/177163184