Question

Расставить коэффициенты: FeOH3 =t FeO3 + H2OCa3(PO4)2 =t CaO + P2O5HNO3 =t H2O + NO4 + OCu(NO3)2 = CuO2 + NO4 + O​

Answer 1

2Fe(OH)₃ +t =Fe₂O₃ + 3H₂O

Ca₃(PO₄)₂ +t= 3CaO + P₂O₅

4HNO₃ +t =2H₂O + 4NO₂↑ + O₂↑

2Cu(NO₃)₂ +t= 2CuO + 4NO₂↑ + O​₂↑

Answer 2

To balance the chemical equations, we need to make sure that the number of atoms of each element is the same on both sides of the equation. I'll balance each equation step by step:

1. Fe(OH)3 = FeO3 + H2O

Fe(OH)3 = Fe2O3 + 3H2O

2. Ca3(PO4)2 = CaO + P2O5

Ca3(PO4)2 = 3CaO + 2P2O5

3. HNO3 = H2O + NO2 + O2

4HNO3 = 4H2O + 4NO2 + O2

4. Cu(NO3)2 = CuO2 + NO2 + O2

3Cu(NO3)2 = CuO2 + 4NO2 + 6O2

Now the chemical equations are balanced with their respective coefficients.