Question

приравнять коэффициент Fe+CuCL2=Cu+FeCL2; Zn+FeBr3=ZnBr2+Fe; HgCL2+AL=ALCL3+Hg; Mg+H2O=H2+Mg(OH)2

Answer 1

Fe+CuCL2=Cu+FeCL2

3Zn+2FeBr3=3ZnBr2+2Fe

3HgCL2+2AL=2ALCL3+3Hg

2Mg+4H2O=2H2+2Mg(OH)2

Answer 2

Fe+CuCL2=Cu+FeCL2;

3Zn+2FeBr3=3ZnBr2+2Fe;

3HgCL2+2AL=2ALCL3+3Hg;

Mg+2H2O=H2+Mg(OH)2

Answer 3

Balancing Chemical Equations

Balancing chemical equations involves ensuring that the same number of each type of atom is present on both sides of the equation. Let's balance the given chemical equations step by step.

1. Fe + CuCl2 = Cu + FeCl2 To balance this equation, we start by counting the atoms of each element on both sides of the equation. We have: - Fe: 1 on the left, 1 on the right - Cu: 1 on the left, 1 on the right - Cl: 2 on the left, 2 on the right

To balance the equation, we can multiply CuCl2 by 2 to balance the chlorine atoms: Fe + 2CuCl2 = Cu + FeCl2

Now, the equation is balanced with: - Fe: 1 on the left, 1 on the right - Cu: 2 on the left, 1 on the right - Cl: 4 on the left, 2 on the right

2. Zn + FeBr3 = ZnBr2 + Fe Counting the atoms of each element, we have: - Zn: 1 on the left, 1 on the right - Fe: 1 on the left, 1 on the right - Br: 3 on the left, 2 on the right

To balance the equation, we can multiply ZnBr2 by 3 to balance the bromine atoms: Zn + 3FeBr3 = 3ZnBr2 + Fe

Now, the equation is balanced with: - Zn: 1 on the left, 3 on the right - Fe: 3 on the left, 1 on the right - Br: 9 on the left, 6 on the right

3. HgCl2 + Al = AlCl3 + Hg Counting the atoms of each element, we have: - Hg: 1 on the left, 1 on the right - Al: 1 on the left, 1 on the right - Cl: 2 on the left, 3 on the right

To balance the equation, we can multiply HgCl2 by 3 and AlCl3 by 2 to balance the chlorine atoms: 3HgCl2 + 2Al = 2AlCl3 + 3Hg

Now, the equation is balanced with: - Hg: 3 on the left, 3 on the right - Al: 2 on the left, 2 on the right - Cl: 6 on the left, 6 on the right

4. Mg + H2O = H2 + Mg(OH)2 Counting the atoms of each element, we have: - Mg: 1 on the left, 1 on the right - H: 2 on the left, 2 on the right - O: 1 on the left, 2 on the right

To balance the equation, we can multiply Mg(OH)2 by 2 to balance the oxygen atoms: Mg + 2H2O = H2 + Mg(OH)2

Now, the equation is balanced with: - Mg: 1 on the left, 1 on the right - H: 4 on the left, 2 on the right - O: 2 on the left, 2 on the right