What does the term isotopes mean?
How many neutrons does this sulfide ion contain?
How is a sulfide ion, $\text{S}^{2-}$, made from a sulfur atom?
Which element forms a 2+ ion with the same number of electrons as a $\text{S}^{2-}$ ion?
(i) Add the correct state symbols to complete stage 1.\nS(....) + O_2(....) → SO_2(....)\n(ii) Give the name of the catalyst used in stage 2 and state the temperature employed.\ncatalyst .................\ntemperature ................. ^{\circ}C\n(iii) Write the equations for the reactions in stage 3 and stage 4.
(i) State one environmental reason for not allowing sulfur dioxide to be released into the atmosphere.\n(ii) Describe the test for sulfur dioxide.\nInclude both the test and the observations.
Calculate the empirical formula for this compound.