Q. Balance the chemical reactions :-
1) Na2 so4 (aq) + Bacl2 (aq) -----Baso4 (s) + NaCl (aq)
2) Cu + O2 → Cuo
3) MnO ₂ + HCI ------ Mncl2 + H₂O + Cl₂
4) HNO3 + Ca (OH)₂ -----Ca(NO₃)₂ + H₂O
5) NaOH + H₂SO4 ------Na2sou4 + H2O
6) BaCl2 + H₂SO4------- BaSO4 + HCl
7) NaOH + Zn----- Na2 ZnO2 + H₂
8) Na2 CO3 + HCl ------NaCI + H₂O + Co2
9) NaHCO₃ + HCl----- NacI + H₂O + CO2
10) Ca(OH)2 + CO2 ------Caco3 + H₂O
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