A: 1, 2 and 3 are correct
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One of the reactions in the rechargeable lead/acid battery is shown. Pb(s) + PbO₂(s) + 4H⁺(aq) + 2SO₄²⁻(aq) → 2PbSO₄(…
KMnO₄ is an oxidising agent. Its reaction with Fe²⁺ is shown in the following ionic equation. ...X...MnO₄⁻ + ......Fe…
The equations for three reactions involving chlorine or its compounds are listed. 1 2KClO₃ → 2KCl + 3O₂ 2 4KClO₃ → 3K…
Which molecules have an overall dipole moment? 1 carbon monoxide, CO 2 phosphine, PH₃ 3 carbon dioxide, CO₂
Which statements about reversible reactions are correct? 1 An increase in concentration of a reactant always increase…
A chemist puts a sample of dilute aqueous hydrochloric acid into beaker 1. She adds a sample of zinc and measures the…