Possible Answers-- H2O(l), Hg(l), H20(g), and Ag(s)
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POLAR bonds and hydrogen bonds are found in Water.\n\n"As a stable, polar molecule prevalent in the atmosphere" (Wikipedia).
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All chlorides are water soluble\n\nEXCEPTIONS: AgCl, Hg2Cl2
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H2+O2-->H2O\nNaOH+HCl-->NaCl+H2O\nKOH-->(on heating,deomposition)K2O+H2O\ni guess this is what u want\nand i f u didn't get it i am sorry......
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.20 m Na2SO4, .20 m NaCl, .10 m BaCl2, .10 m glucose
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You get Mg2O2 (magnesium peroxide) and water H2O.
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1-. NaCl + H2O Sodium Chloride ( table salt )\n2-. NaSO3 +2 H2O Sodium Sulfate ( or sulfite I always forget which is the 3 and which is the 4 )\n3-. NaC2H3O2 + H2O ( I'm guessing.  You will want to check your periodic table for the charges on this one )\n4-.NH4Cl + H2O.  Ammonium Chloride\n5-.NSO2 + 3H2O\n6-. not sure\n\nI presume you are working salt solutions.  Ammonia was never my strong suit. I'm positive about the first two.
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NaOH\nSn(NO3)2\nCo2O3\nFeF2\nCuS2\nFe(OH)3\nAgBr
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Na2S + 2 HCl > H2S + 2 NaCl  \n\nH2SO4 + BaOH > H20 + BaSO4  \n\nNH4Cl + NaOH > NaCl + NH4OH\n\nAgNO3 + NaCl > AgCl + NaNO3\n\nnot sure about complete or reversible..:)
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Oxygen, Carbon Dioxide, and Water
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Mercury  - liquid\nSulphur dioxide  -gas
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Ag+ will precipitate in HCL solution as AgCl, but as for Ag(NO3), i am not so sure.
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1) Zinc Chloride\n2) Copper (II) Sulphate\n3) there is no such thing as NH4OH, but oh well..\n    Ammonium Hydroxide\n4) Iron (III) Sulphide\n5) Aluminium Phosphate\n6) Lead (II) Nitrate\n7) Sulphur hexafluoride\n8) Sodium Sulphate\n9) Mercury (II) oxide\n10) Potassium Clorate (V)\n11) Tin (II) Choride\n12) Iron (II) hydroxide\n13) Mercury (II) Sulphate\n14) Carbon Dioxide
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My answer is,\n \nNH4NO3(ag) + KOH(aq) -> NH4OH(aq) + KNO3(aq)
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Cu(s) + 4HNO3 (aq)--> Cu(NO3)2(aq) + 2H2O(l) +2NO2(g)
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HClO2 + Ba(OH)2 -> BaClO2 + H2O\n\n2(NH4)3PO4 + 3Ca(NO3)2 -> 6(NH4)(NO3) + Ca3(PO4)2\n\nFinished and balanced.
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For the first one:\nNaCl(l) ==> Na(s) + Cl(g)\n\nFor the second one, more information is required, either the volume or the concentration of solution that was prepared.
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The elements Hydrogen (H+) and Chlorine (Cl-) to make HCl (aka hydrochloric acid)