प्र020 निम्न रासायनिक समीकरणों को संतुलित कीजिए -
(i) HNOF-Ca(OH)2
Ca(NO3)2+HO
(ii) NaOH+H2SOA
Na2SO4+ HO
(iii) Bacle+ H2SO.
BaS04+ HCL
(iv)Ca(OH)+CO.
CaCO3+H2O
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