Answer:
Transfer of Heat
You might have observed that a frying pan becomes hot when kept on a flame. It is because the heat passes from the flame to the utensil. When the pan is removed from the fire, it slowly cools down. Why does it cool down? The heat is transferred from the pan to the surroundings. So you can understand that in both cases, the heat flows from a hotter object to a colder object. In fact, in all cases heat flows from a hotter object to a colder object.
Explanation:
please make me as brainleist
Answer:
The oxidation state of sulfur, S, is +6, and the oxidation state of oxygen, O, is - 2:
Explanation:
Application of rules
1. <u>Ion SO₄²⁻</u>
In a neutral compound, the sum of the oxidation states of all the atoms that constitute the compound is equal to zero. In ions the sum of the oxidation states of the atoms is equal to the charge of the ion.
- In this case, the ion SO₄²⁻ has charge negative 2: - 2
<u>2. Oxygen</u>
With the exception of the peroxides, when oxygen is combined with other elements, it always has oxidation state - 2.
Hence, the total charge of the four atoms of oxygen in SO₄²⁻ is 4×(-2) = - 8.
<u>3. Sulfur</u>
Therefore, naming x the unknown oxidation state of S, you can set this equation:
- x + ( - 8) = - 2
- ⇒ x = - 2- ( - 8) = - 2 + 8 = + 6
Conclusion
- In SO₄²⁻, the oxidation state of sulfur, S, is +6, and the oxidation state of oxygen, O, is - 2.
