Write balanced equations for each of the following by inserting the correct coefficients in the blanks:_Cu(NO3)2(aq)+_KOH(aq)→_Cu(OH)2(s)+_KNO3(aq)_BCl3(g)+_H2O(l)→_H3BO3(s)+_HCl(g)_CaSiO3(s)+_HF(g)→_SiF4(g)+_CaF2(s)+_H2O(l)_(CN)2(g)+_H2O(l)→_H2C2O4(aq)+_NH3(g)

CuNO32aq+2KOHaq→CuOH2s+2KNO3aqBCl3g+3H2Ol→H3BO3s+HClgCaSiO3s+6HFg→SiF4g+CaF2s+3H2OlCN2g+4H2Ol→H2C2O4aq+2NH3g

3.52P - Chemistry: Molecular Nature Of Matter And Change

Write balanced equations for each of the following by inserting the correct coefficients in the blanks:

$_Cu {({NO}_{3})}_{2} (aq) +_KOH (aq) \to_Cu {(OH)}_{2} (s) + {_KNO}_{3} (aq)$
${_BCl}_{3} (g) + {_H}_{2} O (l) \to {_H}_{3} {BO}_{3} (s) +_HCl (g)$
${_CaSiO}_{3} (s) +_HF (g) \to {_SiF}_{4} (g) + {_CaF}_{2} (s) + {_H}_{2} O (l)$
$_{(CN)}_{2} (g) +_H_{2} O (l) \to {_H}_{2} C_{2} O_{4} (aq) + {_NH}_{3} (g)$

Verified

Answer

$Cu {({NO}_{3})}_{2} (aq) + 2 KOH (aq) \to Cu ({OH}_{2}) (s) + 2 {KNO}_{3} (aq)$
${BCl}_{3} (g) + 3 H_{2} O (l) \to H_{3} {BO}_{3} (s) + HCl (g)$
${CaSiO}_{3} (s) + 6 HF (g) \to {SiF}_{4} (g) + {CaF}_{2} (s) + 3 H_{2} O (l)$
${(CN)}_{2} (g) + 4 H_{2} O (l) \to H_{2} C_{2} O_{4} (aq) + 2 {NH}_{3} (g)$

1Step1. Considering the following chemical equations:

Balancing all atoms other than H and O, after that balanced O and H Then checked overall equation is balanced or not.

For balancing the equation we chose firstly the most complicated-looking molecule in the equation. For example H₃BO₃.

2Step2. The final balanced reaction of the given reaction:

$Cu {({NO}_{3})}_{2} (aq) + 2 KOH (aq) \to Cu {(OH)}_{2} (s) + 2 {KNO}_{3} (aq)$
${BCl}_{3} (g) + 3 H_{2} O (l) \to H_{3} {BO}_{3} (s) + HCl (g)$
${CaSiO}_{3} (s) + 6 HF (g) \to {SiF}_{4} (g) + {CaF}_{2} (s) + 3 H_{2} O (l)$
${(CN)}_{2} (g) + 4 H_{2} O (l) \to H_{2} C_{2} O_{4} (aq) + 2 {NH}_{3} (g)$