Question

слипнутся ли два листочка если один смочит водой а другой растительным маслом.Ответ обоснуйте

Answer 1

НЕ слипнутся,так как Масло отталкивает воду!

Answer 2

Не слипнутся, так как вода не смачивает жирные поверхности, то есть молекулы воды притягиваются к молекулам воды сильнее, чем к молекулам масла,так как молекулы воды полярны,а молекулы жира не полярны.Стремясь к стабильности,полярные молекулы воды тяготеют к полярному окружению,а неполярные масла-к неполярному.

удачи)))

Answer 3

Can two pieces of paper stick together if one is wet with water and the other with vegetable oil?

When one piece of paper is wet with water and the other with vegetable oil, it is unlikely that the two pieces will stick together. This is because water and oil do not mix well due to their different chemical properties. Water is a polar substance, while oil is nonpolar. Polar substances are attracted to other polar substances, while nonpolar substances are attracted to other nonpolar substances. As a result, water and oil tend to repel each other rather than stick together.

Water molecules have a positive end and a negative end, which allows them to form hydrogen bonds with other polar molecules. On the other hand, oil molecules are nonpolar and do not have charged ends. This makes it difficult for water and oil to mix or form any significant adhesive forces between them.

Therefore, if one piece of paper is wet with water and the other with vegetable oil, it is unlikely that the two pieces will stick together. The water will be absorbed by the paper, while the oil will remain on the surface, creating a barrier between the two pieces.

Note: The information provided above is based on general knowledge of the properties of water and oil.