Chemistry balanced equations?

2017-12-07 9:51 am
The "in water" part is throwing me off. Any help on these questions is much appreciated!

Complete and balance the equations for these reactions in water:
(a) potassium phosphate + barium chloride (include physical states in your answer)
(b) hydrochloric acid + nickel carbonate (include physical states in your answer)
(c) ammonium chloride + sodium nitrate (include physical states in your answer)

回答 (2)

2017-12-07 9:59 am
Referring to aqueous solutions.....

(a) 2K3PO4(aq) + 3BaCl2(aq) --> Ba3(PO4)2(s) + 6KCl(aq)
Barium phosphate is insoluble in water.

(b) 2HCl(aq) + NiCO3(s) --> NiCl2(aq) + CO2(g) + H2O(l)
Nickel carbonate, like most metal carbonates, is insoluble in water. Carbonate compounds react with acids to liberate carbon dioxide gas.

(c) NH4Cl(aq) + NaNO3(aq) --> no reaction
There is no insoluble product. Both of the hypothetical products - NH4NO3 and NaCl - are soluble in water.
2017-12-07 10:01 am
(a)
2 K3PO4(aq) + 3 BaCl2(aq) → Ba3(PO4)2(s) + 6 KCl(aq)

(b)
2 HCl(aq) + NiCO3(s) → NiCl2(aq) + CO2(g) + H2O(l)

(c)
no reaction


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