The following data are obtained when dinitrogen and dioxygen react together to form different co...

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The following data are obtained when dinitrogen and dioxygen react together to form different compounds:
                                 strong         Mass of dinitrogen/strong                    strongMass of dioxygen/strong
(i)                                                   14 g                                              16 g
(ii)                                                  14 g                                              32 g
(iii)                                                 28 g                                              32 g
(iv)                                                 28 g                                              80 g
Which law of chemical combination is obeyed by the above experimental data?
Give its statement.
Fill in the blanks in the following conversions:
(i)   1Km =...........................mm =...........................pm.
(ii)  1mg  =..........................  Kg =...........................ng.
(iii)  1mL =...........................L =...........................dm-3.
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