Greenhill Grammar school, Oldham

Page 28 of 30

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Chem-Cross-Symbol

 

06_ChemXword 

 

   Across
 1.   A gas which turns limewater cloudy.
 3.   Aqua fortis.
 6.  3Cu + 8HNO3 ->• 3Cu(NO3)2  +  ———.
 8.  Radium.
10.  A solvent for sulphur.
11.  2KBr + Cl2  ?   —— + 2KCl.
12.  Nitrogen reversed.
14.  — XY — EN (a gas).
15.  Atomic weight of magnesium.
16.  Sodium.
17.  A poisonous brown gas.
20.  A very soluble gas that will perform the "Fountain experiment."
22.  CO2 + C ? ——.
24.  Thy symbol of a rare or inert gas.
25.  Two molecules of chalk.

    Down
 1.  An elementary substance, widely diffused, of which pure charcoal is an example.
 2.  2C.
 3.  Oil of vitriol.
 4.  See 17 across.
 5.  Atomic weight of sulphur.
 7.  Oxalic acid contains the elements oxygen, — and —.
 9.  A rare or inert gas.
12.  See 12 across.
13.  This substance will yield oxygen when heated.
18.  Co + —— ? CH3OH.
19.  12 atoms of carbon.
21.   Fe2O3 + —— ?  3CO + 2Fe.
23.   A gas present in coal gas.