موازنه کنید: a. $Br_{2}(l) + KI(aq) \to KBr(aq) + I_{2}(s)$ b. $K_{2}O_{2}(s) + H_{2}O(l) \to KOH(aq) + O_{2}(g)$ c. $LiOH(s) + CO_{2}(g) \to Li_{2}CO_{3}(s) + H_{2}O(g)$ d. $K_{2}CO_{3}(s) + HNO_{3}(aq) \to KNO_{3}(aq) + H_{2}O(l) + CO_{2}(g)$ e. $LiAlH_{4}(s) + AlCl_{3}(s) \to AlH_{3}(s) + LiCl(s)$ f. $Mg(s) + H_{2}S(g) \to MgS(s) + H_{2}(g)$ g. $Na_{2}SO_{4}(s) + C(s) \to Na_{2}S(s) + CO_{2}(g)$ h. $NaCl(s) + H_{2}SO_{4}(l) \to Na_{2}SO_{4}(s) + HCl(g)$