Question

Определите степени окисления BaCO3PH3CL2O5KMnO4PBO2

Answer 1

1)Ba +2
C +4
O -2
2)Р +3
Н -1
3) Cl +5
O -2
4) K +1
Mn +7
O-2
5)Pb +4
O -2

Answer 2

Determining Oxidation States

To determine the oxidation states of the elements in the given compounds, we can follow some general rules:

1. The oxidation state of an element in its elemental form is always 0. 2. The sum of the oxidation states of all the atoms in a compound is equal to the overall charge of the compound. 3. In a neutral compound, the sum of the oxidation states of all the atoms is equal to 0.

Let's calculate the oxidation states for each element in the given compounds:

1. BaCO3: - Ba: Let the oxidation state of Ba be x. - C: The oxidation state of oxygen is -2, and there are three oxygen atoms. Let the oxidation state of C be y. - O: The oxidation state of oxygen is -2. - Using the rules mentioned above, we can set up the equation: x + 3y - 6 = 0. - Solving for x, we find that the oxidation state of Ba is +2.

2. PH3: - P: Let the oxidation state of P be x. - H: The oxidation state of hydrogen is +1. - Using the rules mentioned above, we can set up the equation: x + 3(+1) = 0. - Solving for x, we find that the oxidation state of P is -3.

3. Cl2O5: - Cl: Let the oxidation state of Cl be x. - O: The oxidation state of oxygen is -2, and there are five oxygen atoms. - Using the rules mentioned above, we can set up the equation: 2x + 5(-2) = 0. - Solving for x, we find that the oxidation state of Cl is +5.

4. KMnO4: - K: The oxidation state of potassium is +1. - Mn: Let the oxidation state of Mn be x. - O: The oxidation state of oxygen is -2, and there are four oxygen atoms. - Using the rules mentioned above, we can set up the equation: +1 + x + 4(-2) = 0. - Solving for x, we find that the oxidation state of Mn is +7.

5. PbO2: - Pb: Let the oxidation state of Pb be x. - O: The oxidation state of oxygen is -2, and there are two oxygen atoms. - Using the rules mentioned above, we can set up the equation: x + 2(-2) = 0. - Solving for x, we find that the oxidation state of Pb is +4.

Summary of Oxidation States

- BaCO3: Ba(+2), C(+4), O(-2) - PH3: P(-3), H(+1) - Cl2O5: Cl(+5), O(-2) - KMnO4: K(+1), Mn(+7), O(-2) - PbO2: Pb(+4), O(-2)

These are the oxidation states for the given compounds. If you have any more questions or need further assistance, feel free to ask!