surface tension is sufficient to support the razor blade
soap solution disrupts the surface tension ... makes the water "wetter"
explain briefly why a razor blade floats in water and when soap solution is carefully added to the water it sinks
4 answers
The soap solution reduces the surface tension on one side of the blade. So the blade is pulled with lesser force from this side from the other side, where no soap solution has reached, the force is high and hence the blade moves.
When it is raining it is advisable not to touch canvas tent from inside.Explain the behaviour of molecules
When it is raining, water droplets will form on the outside of the canvas tent. The molecules in these water droplets are attracted to each other and they form hydrogen bonds, which make the droplets stick together and to the surface of the tent.
If you touch the inside of the tent, you are likely to disturb these hydrogen bonds and cause the droplets to fall onto the interior of the tent. This is because the surface tension of the droplets can be easily broken by outside forces such as touch.
Furthermore, the canvas material is not completely waterproof, so water may seep through the fabric and cause wetness inside the tent. Therefore, it is advisable not to touch the tent from the inside to avoid getting wet during rainy weather.
If you touch the inside of the tent, you are likely to disturb these hydrogen bonds and cause the droplets to fall onto the interior of the tent. This is because the surface tension of the droplets can be easily broken by outside forces such as touch.
Furthermore, the canvas material is not completely waterproof, so water may seep through the fabric and cause wetness inside the tent. Therefore, it is advisable not to touch the tent from the inside to avoid getting wet during rainy weather.