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  1. C

    help

    Q.7 what deductions can be made from the following observations on a crystalline compund K? explain your answers A) when heated gently it gave off a colourless vapour that condensed on the side of the test tube. the liquid turned blue cobalt chloride paper pink B)K was dissolved in water the...
  2. C

    help me out guys

    hwe
  3. C

    help me guys

    iron was added to H2SO4 AND IT WAS GENTLY WARMED..WHY THE MIXTURE WAS GENTLY WARMED? q.2 IRON DISSAPEARED AND A PALE GREEN SOLUTION WAS FORMED TELL ME WHY THE REACTION STOPPED? q.3 dISCUSS THE ADVANTAGES AND DISADVANTAGES OF MEASURING THE PH OF LEMON JUICE BY USING LITMUS PAPER OR BY USING PH...
  4. C

    need urgent chemistry help please

    Q When solid X is added to solution Y, copper(ii) chloride and carbon dioxide gas are formed. However, when solid Z is added to solution Y, zinc chloride and hydrogen are produced .Deduce the identities of X,Y and Z
  5. C

    anyone who scored an A* in engish

    i need help
  6. C

    English Vocabulary

    Can anyone provide me classified vocab?
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