Question

Закончите уравнения Pb(OH)2= Ni(OH)3= NaOH+SiO2= Cr2(SO4)3+NaOH= Co(NO3)2+NaOH= Al+HCI= BaO+HNO3= Fe203+H2SO4= H2SO4+NaOH= H2S+NaOH= AgNO3+HCI= CuSO4+H2S=

Answer 1

Ответ:

Объяснение:

Pb(OH)2 = H2O + PbO

2Ni(OH)3 → Ni2O3 + 3H2O

SiO2 + 2 NaOH → Na2SiO3 + H2O

Cr2(SO4)3 + 6 NaOH → 2 Cr(OH)3 + 3 Na2SO4

2 NaOH + Co(NO3)2 → 2 NaNO3 + Co(OH)2

2 Al + 6 HCl → 2 AlCl3 + 3 H2

BaO + 2 HNO3 → Ba(NO3)2 + H2O

Fe2O3 + H2SO4 = Fe2(SO4)3 + H2O

2NaOH + H2SO4 → Na2SO4 + 2H2O

H2S + 2NaOH → Na2S + 2H2O

AgNO3 + HCl → AgCl + HNO3

H2S + CuSO4 → CuS + H2SO4

Answer 2

Balancing Chemical Equations:

To balance the given chemical equations, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's balance each equation one by one:

1. Pb(OH)2 = Ni(OH)3: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: Pb(OH)2 = Ni(OH)3.

2. NaOH + SiO2: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 2NaOH + SiO2.

3. Cr2(SO4)3 + NaOH: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: Cr2(SO4)3 + 6NaOH.

4. Co(NO3)2 + NaOH: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: Co(NO3)2 + 2NaOH.

5. Al + HCl: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: 2Al + 6HCl.

6. BaO + HNO3: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: BaO + 2HNO3.

7. Fe2O3 + H2SO4: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: Fe2O3 + 3H2SO4.

8. H2SO4 + NaOH: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: H2SO4 + 2NaOH.

9. H2S + NaOH: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: H2S + 2NaOH.

10. AgNO3 + HCl: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: AgNO3 + HCl.

11. CuSO4 + H2S: - To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. - The balanced equation is: CuSO4 + H2S.

Please note that the equations provided are already balanced.