Complete the word equation to show the reaction of magnesium carbonate with nitric acid. magnesium carbonate + nitric acid → [BLANK] + [BLANK] + [BLANK]
Describe how to prepare a sample of pure, dry copper(II) chloride crystals after the reaction is complete. In your answer, describe how to: • separate off the excess copper(II) oxide from the reaction mixture • make the copper(II) chloride crystallise • dry the crystals.
Label Fig. 6.1 to indicate the: • anode • molten lithium iodide.
Name one additional material that can be used as an inert electrode.
Name the products formed at the positive and negative electrodes when molten lithium iodide is electrolysed. positive electrode negative electrode
State which two of the compounds, A, B, C, D and E, are simple molecules. Give two reasons for your answer. compounds reason 1 reason 2