46) Which reaction below is an example of a single replacement reaction? A) 2H(g) + O(g) 2HO (1) B) FeCl, (aq) + 3KOH (aq) - C) HSO, (aq) + 2NaOH(aq) D) 6HCl (aq) + 2Al(s) 47) Which reaction below is an example of a precipitation reaction? A) H,CO, (aq) HO (1) + CO (g) B) FeCl, (aq) + 3KOH (aq) Fe(OH), (s) + 3KCI (aq) C) HSO, (aq) + 2NaOH(aq) NaSO, (aq) + 2HO (1) D) 6HCI (aq) + 2Al(s) 2AICI, (aq) + 3H(g) 1 Fe(OH), (s) + 3KCI (aq) NaSO, (aq) + 2HO (1) 2AICI, (aq) + 3H(g) 48) The net ionic reaction for the balanced equation below is +2 A) Ba (aq) + 2NO, (aq) B) 2K (aq) +SO, (aq) C) Ba (aq) + SO, (aq) D) K (aq) + NO, (aq) Ba(NO), (aq) + K,SO (aq) 2 KNO, (aq) + BaSO (s) - 1 1 1 Ba(NO), (aq) K,SO, (aq). BaSO,(s). KNO, (aq). 49) Which expression could represent the concentration of a solution? A) 3.5 g B) 3.5 ml. C) 3.5 M D) 3.5 mol