Determine the number of atoms of each element in each of the following compounds. (3 marks) a)K 2 Cr 2 O 7 b) (NH 4 ) 3 PO 4 6. Name the following...
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5.      Determine the number of atoms of each element in each of the

following compounds.                    
                (3 marks)
a)     K2Cr2O7




b) (NH4)3PO4





6.  Name the following molecular compounds.                                                    (4 marks)
           
a)       SBr2




b)        OF2






7.  Name the following ionic compounds.                                                               (4 marks)


a)        SnCl2




b)        Ca3(PO4)2



8.  Name the following acids.                                                                                  (4 marks)


a)     HF (aq)




b)     H2NO2 (aq)




9. Give the formula for the following ionic compounds (Part A), molecular compound (Part B) or acid (Part C).                                                                                              (8 marks)


A1)     sodium nitride




A2)     iron (II) sulfate




B1)     carbon tetrachloride




C1)     carbonic acid


       

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