Some sulfur is obtained by mining. Name one additional major source of sulfur.
What is the name of the industrial process used to make sulfuric acid?
Describe the conversion of sulfur dioxide to sulfur trioxide in step 2. In your answer, include: • a chemical equation for the reaction • the essential reaction conditions.
What substance is taken from the glucose in this reaction?
Name the black solid that is formed in this reaction.
Define oxidation in terms of electron transfer.
Complete the dot-and-cross diagram so that it shows the electron arrangement in a molecule of hydrogen sulfide. Show only outer-shell electrons.
Hydrogen sulfide has a simple molecular structure. Explain why hydrogen sulfide has such a low boiling point.
Calculate the number of moles of dilute sulfuric acid used in the titration.
Calculate the number of moles of sodium hydrogencarbonate required to neutralise the dilute sulfuric acid.
Calculate the volume, in cm$^3$, of $0.200\ \text{mol dm}^{-3}$ aqueous sodium hydrogencarbonate that is needed to neutralise the dilute sulfuric acid.