Reactivity series of metals and halogens

Which of these reactions will occur spontaneously? I. $\ce{KI + Br2}$ II. $\ce{KBr + Cl2}$ III. $\ce{KCl + Br2}$ A. I and II only B. I and III only C. II and III only D. I, II and III

Gallium forms a sulfate of formula $\ce{Ga2(SO4)3}$. (i) Both ionic and covalent bonding are present in this compound. State which particles are held together by each type of bond. (ii) Contrast covalent and ionic bonds in terms of what happens to the valence…

Part of the reactivity series of metals is shown, from the most reactive to the least reactive. Mg, Al, Mn, Zn, Fe, Ni, Sn, Pb, Cu, Ag Which reaction is spontaneous? A. $\ce{Fe^{2+}(aq) + Ni(s) -> Ni^{2+}(aq) + Fe(s)}$ B.…

Cadmium was added to separate solutions of silver nitrate and chromium(III) nitrate. $\ce{Cd(s) + 2AgNO3(aq) -> Cd(NO3)2(aq) + 2Ag(s)}$ $\ce{Cd(s) + Cr(NO3)3(aq)}$: no reaction Which list places the three metals in order from most reactive to least reactive?…

A steel object is electroplated with nickel, using an aqueous nickel(II) chloride electrolyte. (i) Deduce the half-equation for the reaction occurring at each electrode. Anode: Cathode: (ii) For the reaction between chlorine gas and aqueous potassium iodide…

A student placed strips of the metals L, M and N in aqueous solutions containing the ions $\ce{M^2+}$, $\ce{N^2+}$ and $\ce{L^2+}$ respectively, as shown. The observations are given under each beaker. What is the order of increasing reactivity of the three…