Question

Решите уравнения:СuSO4+Fe--->KOH+HCl--->Na2CO3+HCL--->CaSO4+Na2CO3--->

Answer 1

СuSO₄ + Fe ---> Cu + FeSO₄

KOH + HCl---> KCl + H₂O
 
Na₂CO₃ + 2HCl ---> 2NaCl + CO₂↑ + H₂O

CaSO₄ + Na₂CO₃ ---> CaCO₃↓ + Na₂SO₄

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 go through each equation step by step:

1. CuSO4 + Fe →

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. In this case, we have one copper (Cu) atom on the left side and one on the right side, so copper is already balanced. However, we have one sulfur (S) atom on the left side and zero on the right side, so we need to add a coefficient of 1 in front of FeSO4 to balance sulfur. Finally, we have four oxygen (O) atoms on the left side and zero on the right side, so we need to add a coefficient of 4 in front of FeSO4 to balance oxygen.

The balanced equation is:

CuSO4 + Fe → FeSO4 + Cu 2. KOH + HCl →

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. In this case, we have one potassium (K) atom on the left side and zero on the right side, so we need to add a coefficient of 1 in front of HCl to balance potassium. We also have one hydrogen (H) atom on the left side and one on the right side, so hydrogen is already balanced. Finally, we have one chlorine (Cl) atom on the left side and zero on the right side, so we need to add a coefficient of 1 in front of KOH to balance chlorine.

The balanced equation is:

KOH + HCl → KCl + H2O 3. Na2CO3 + HCl →

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. In this case, we have two sodium (Na) atoms on the left side and one on the right side, so we need to add a coefficient of 2 in front of NaCl to balance sodium. We also have one carbon (C) atom on the left side and one on the right side, so carbon is already balanced. Finally, we have three oxygen (O) atoms on the left side and zero on the right side, so we need to add a coefficient of 3 in front of HCl to balance oxygen.

The balanced equation is:

Na2CO3 + 2HCl → 2NaCl + H2O + CO2 4. CaSO4 + Na2CO3 →

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides. In this case, we have one calcium (Ca) atom on the left side and one on the right side, so calcium is already balanced. We also have one sulfur (S) atom on the left side and one on the right side, so sulfur is already balanced. Finally, we have four oxygen (O) atoms on the left side and three on the right side, so we need to add a coefficient of 3 in front of CaSO4 to balance oxygen.

The balanced equation is:

CaSO4 + Na2CO3 → CaCO3 + Na2SO4 I hope this helps! Let me know if you have any further questions.