The bubbles form as air is trapped in the water. Surface tension separates the air and water; it acts all over the surface, exerting a force toward the center of the bubble: this force is resisted by an opposing pressure of air in the bubble. read more
Hydrogen and oxygen are being formed if an electric current is passed through water and bubbles start forming. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions. read more
Atmospheric gases such as nitrogen and oxygen can dissolve in water. The amount of gas dissolved depends on the temperature of the water and the atmospheric pressure at the air/water interface. Colder water and higher pressure allow more gas to dissolve; conversely, warmer water and lower pressure allow less gas to dissolve. read more
When you pass current through water, its temperature rises fast due to I^2R loss and water gets evaporated. The steam thus formed will form bubbles and come upwards. The current creates heating and boiling of water along its path. Sometimes you may also observe the bubbles vanishing again in water- due to cooling and condensing back to water. read more
Hydrogen and oxygen are being formed if an electric current is passed through water and bubbles start forming. Thank you for posting your question here at brainly. I hope the answer will help you. read more