A: car body
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Equations for reactions of iron and iron compounds are shown. Fe + 2HCl → FeCl2 + H2 2FeCl2 + Cl2 → 2FeCl3 FeSO4 + Mg…
A metal M forms a chloride which dissolves in cold water and has an oxide which dissolves in both strong acids and st…
Which element has a variable oxidation state, can act as a catalyst and forms coloured compounds?
A metal consists of a lattice of positive ions in a 'sea of electrons'. What changes, if any, take place to the elect…
What is the mass of one mole of carbon-12?
Two different hydrocarbons each contain the same percentage by mass of hydrogen. It follows that they have the same