Step 2: consult the solubility rules linked over to determine whether each substance will certainly dissociate:

2 HI+


BaI2+2 H2O




Step 3: Dissociate every soluble salts, solid acids, and solid bases (except calcium hydroxide). Leave together all "not soluble" salts and weak mountain or bases. Note that when H3O+ loses a proton, a water molecule is formed.

2H3O+ (aq) + 2I- (aq) + Ba2+ (aq) + 2OH- (aq)Ba2+ (aq) + 2I- (aq) + 4 H2O (l)

Step 4: Cross out "spectator ions" that show up on both political parties of the reaction (these ions perform not participate in the chemistry) and rewrite the "net" reaction using the smallest feasible coefficients.

H3O+ (aq) + OH- (aq) 2 H2O (l)

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∙ 8y ago
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