Na2B4O7 +HCl+ H2O -----> Share with your friends Share 0 Vartika Jain answered this Dear Student, The reaction is shown below : Na2B4O7(s) + 2HCl(aq) + 5H2O(l) → 4H3BO3(aq) + 2NaCl (aq) 0 View Full Answer Sukhaina Raffi answered this Na2B4O7(s) + 2 HCl(aq) + 5 H2O(l) = 2 NaCl(aq) + 4 H3BO3(aq) 2