Question

1. Write balanced chemical equations for each of the following descriptions: a. potassium carbonate reacts with nitric acid b. calcium bicarbonate reacts with sulfuric acid c. strontium bicarbonate reacts with hydrochloric acid

Answer 1

.a) Potassium Carbonate reacts with nitric acid. Potassium Carbonate = K2CO3 • Nitric acid → HNO3 whes K2CO3 reacts with HNO3 it produces H,O, Potassium nitrate CKNO3) and CO2 gas. K₂CO3 + HNO₃ - KNO3 + H₂O + co ! - Cas) (a) Caq) (a) G Potassium and Hatoms are not balanced. In order to balance these co-efficient 2 is placed before HNO3 and KNO3. K2CO3 + 2HNO3 - caq) caq) → 2 KNO3 + H, 0 + CO cag) 2015 (9) b) calcium bicarbonate and sulphuric acid calcium bicarbonate: Ca(HCO3), scelphuric acid ; H2S04. CACHCO3)2 + Hy 504 - Cas04 + H2O + Co (ar) car) (5) (1) 09 Cattand oxygers atoms are not balanced, In order to balance these coefficient a is placed before H₂O & CO2. Ca(HCO3), + H2SO4 - caq) (as) > CaSO4 + 2 H2O +260

hydrochloric acid Strontium bicarbonate reads with Strontium bicarbonate > SCHC03). Hydhochloric acid - Hel Sr CHCO3)2 + HU - Srola + H2O + Co. (aq) cars (aq) (0) (9) S&CHCO3), reacts with ter to produce sreb, water and coz as products, To balance Cl,H, cand oxygen atoms 2 coefficient placed before Hel, H₂O and co2. G&CHCO3 + 2Hd . (aq) Srch + 2t Caq)