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Convert the following word sentence to chemical eq

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These are the word equation which are to be converted to chemical equations as shown

(a) 2Cu(s) + O2 ------> 2CuO (s)

(b) NH4OH(aq) -----> H2O(l) + NH3(g)

(c) Ba(NO3)2 (aq) + K2SO4 (aq) ----->BaSO4(s) + 2KNO3 (aq)

(d) 2HCl(g) + Na2S (s) ----> 2NaCl(s) + H2S(g)

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