Write one word equation for each. [4] a) To show change of smell and change of state.[in same equation] b) To show formation of a white precipitate.
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H2+S = H2S. H2S rotten egg smell
NH3+ HCl= NH4Cl. NH3 is gas HCl is gas And NH3 is solid
BaCl2+H2SO4 = BaSO4+ 2HCl. BaSO4 is white ppt
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