62 Convert the following word sentence to chemical equations, be sure you indica

Question

62

Convert the following word sentence to chemical equations, be sure you indicate the states of matter of each reactant and product . DO NOT BALANCE THE EQUATION. Copper metal corrodes slowly in oxygen gas to form a ' patina' of solid copper (II) oxide. (4.5) Aqueous ammonium hydroxide decomposes to produce liquid water and ammonia gas. (4.5) Dissolved barium nitrate reacts with dissolved potassium sulfate to from solid barium sulfate and a potassium nitrate solutions. (6) Hydrogen chloride gas reacts with solid sodium sulfide to make solid sodium chloride and hydrogen sulfide gas. (6)

Explanation / Answer

ANSWER

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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