Question

Zm(OH)2+NaOH= KHCO3+H2SO4=

Answer 1

Zn(OH)2 + 2NaOH = Na2[Zn(OH)4] в растворе
Zn(OH)2 + 2NaOH = Na2ZnO2 + 2H2O сплавление

KHCO3 + H2SO4 = K2SO4 + 2CO2 + 2H2O

Answer 2

The given chemical equation consists of two separate reactions. Let's break it down into its individual steps and balance each one.

1. Zn(OH)2 + NaOH → NaZn(OH)3 We first need to balance the chemical equation by ensuring that the number of atoms of each element is the same on both sides of the equation. Here, we have 1 zinc atom, 2 oxygen atoms, and 3 hydrogen atoms on the left-hand side, and 1 sodium atom, 1 zinc atom, 3 oxygen atoms, and 3 hydrogen atoms on the right-hand side. To balance the equation, we can add a coefficient of 2 in front of NaOH:

Zn(OH)2 + 2NaOH → Na2Zn(OH)4

2. KHCO3 + H2SO4 → K2SO4 + H2O + CO2 Again, we need to balance the chemical equation by ensuring that the number of atoms of each element is the same on both sides of the equation. Here, we have 1 potassium atom, 1 hydrogen atom, 2 carbon atoms, and 5 oxygen atoms on the left-hand side, and 2 potassium atoms, 1 sulfur atom, 4 oxygen atoms, and 3 hydrogen atoms on the right-hand side. To balance the equation, we can add a coefficient of 1 in front of H2SO4 and a coefficient of 2 in front of K2SO4:

2KHCO3 + H2SO4 → K2SO4 + 2H2O + 2CO2

So the final balanced chemical equation is:

Zn(OH)2 + 2NaOH → Na2Zn(OH)4 2KHCO3 + H2SO4 → K2SO4 + 2H2O + 2CO2