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suter [353]
3 years ago
10

PLEASE HELP, 99 POINTS When an electric current is passed through water during the process of electrolysis two gases are formed

one gas has a boiling point of -183 degrees Celsius and the other has a boiling point at -253 degrees C as a physical change or a chemical change that occurred
Chemistry
2 answers:
Oksana_A [137]3 years ago
8 0
It would be a chemical change, as it produces both hydrogen and oxygen gasses
OleMash [197]3 years ago
4 0

It would a a chemical change as you cant see the boiling points changing or being formed. Physical changes are only when you visibly and physically observe the change

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dimulka [17.4K]

Answer:

-85 °C

Explanation:

O and S are in the same group( Group 16). Since S is below O it's atomic mass is higher than O. So molar mass of H2S is higher than H2O. The strength of Vanderwaal Interactions ( London dispersion forces) increases when the molar mass increases. However, only H2O can form H bonds with each other. This is because electronegativity of O is higher than S and therefore H in H2O has a higher partial positive charge than H of H2S.

H bond dominate among these 2 types of forces so the strength of attractions between molecules is higher in H2O than H2S. Therefore more energy should be supplied for H2O to break inter

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Olenka [21]

Answer:The correct answer is option 4.

Explanation:

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Arrhenius bases are those compounds which gives OH^- ions when dissolved in their aqueous solution.

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I attached a picture to help make sense

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