Vinegar does not melt ice the fastest because vinegar is largely composed of acetic acid and mostly water.The rate of melting depends on the thermal conductivity of the substance in contact with the ice cube. The higher the thermal conductivity, the quicker heat is transferred from the ice cube to the substance. Salt water has a high thermal conductivity so it would melt ice the fastest
Answer:
It usually leads to more confidence in the results
Adaptation actually and also following control measures on how to avoid it from happening
Answer: H₂SO₄ is the chemical formula that represents sulfuric acid.
Explanation:
1) H stands for hydrogen and H₂ means that each unit contains two atoms of hydrogen.
2) S stands for sulfur. Since there is not subscript, means each unit contains one atom of sulfur.
3) O stands for oxygen, and O₄ means that each unit has four oxygen atoms.
4) The way the compound is build up is the S atom at the center with two double bonds to each to one atom of O, and two single bonds one to each OH ion.
5) Sulfuric acid is a strong acid, so it dissociates in water and alghough the formula H₂SO₄ is used to represent it, the aqueous solution is formed by ions: HSO₃⁻, H⁺, SO₄²⁻, and OH⁻, as represented by these dissociation equaitons show:
1) H₂SO₄ ⇄H⁺ + HSO₄⁻ first dissociation
2) HSO₄⁻ ⇄ H⁺ + SO₄²⁻ second dissociation
So, H₂SO₄ is one form to represent sulfuric acid.
The correct answer to this question is A