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?…

(i) Deduce the condensed electron configuration of chlorine. (ii) Describe the bonding in a molecule of chlorine in terms of valence electrons. (iii) Explain why chlorine has a much lower boiling point than bromine, although both exist as simple diatomic…

Sketch, on the axes, the graphs of the time for complete reaction against the mass of metal that you would expect for sodium and for potassium. Label each line.