Hydrobromic acid, solution table

Sodium bromide [7647-15-6] NaBr, the most common and available alkali bromide, is a salt of hydrobromic acid (see Bromine COMPOUNDS). Sodium bromide crystallizes from aqueous solution as a di ydj 2LX.e[13466-08-5] NaBr-2H20, below 51 C. Above 51°C, it crystallizes as the anhydrous compound. Crystals of the dihydrate belong to the monoclinic system and have lattice parameters a = 659 pm, b = 1020 pm, and c = 651 pm. The anhydrous crystal belongs to the cubic system, a = 596 pm. Other physical properties of the anhydrous salt are Hsted in Table 1. The anhydrous salt is hygroscopic but not dehquescent. 

Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, simply write NR. (a) Iron metal is added to a solution of cop-per(II) nitrate (b) zinc metal is added to a solution of magnesium sulfate (c) hydrobromic acid is added to tin metal (d) hydrogen gas is bubbled through an aqueous solution of nickelfll) chloride (e) aluminum metal is added to a solution of cohalt(n) sulfate. 

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