Ammonium sulfate, (NH₄)₂SO₄, and ammonium nitrate, NH₄NO₃, are used as fertilisers. These salts have different percentages by mass of nitrogen. They have the same effect as each other on the pH of neutral soil. Which row is correct?

The table shows the partial pressures in an equilibrium mixture formed by the Haber process. 3H2(g) + N2(g) ⇌ 2NH3(g)…

A reversible reaction is shown. 2NOCl(g) ⇌ 2NO(g) + Cl2(g) ∆H = +77.0 kJ mol⁻¹ Which change in conditions will move t…

Aqueous iron(II) ions, Fe2+(aq), are usually kept in acidic conditions to prevent them readily oxidising to aqueous i…

Which row identifies a suitable starting material and reagent that can be used to produce butanenitrile?

Which reaction would produce propanoic acid as one of its products?

Carbon and nitrogen are adjacent in the Periodic Table. Which properties do they both have? 1 There is an empty 2p or…