Water Notes Flashcards
(10 cards)
What are the reasons for the water stricter being polar ?
The oxygen have more electronegativity (pull on electrons)
What makes water polar ?
The slightly negative O and the slightly positive H
What is the angle between the 2 hydrogenated
105 degree angle between hydrogens
What is cohesion
Water to water attraction between molecules
What is adhesion
Water to another molecules attraction. 2 polar molecules form hydrogen bonds
What type of bond is a hydrogen bond ?
A weak bond because no atoms are being shared
How do plants absorb water ?
Plants have straw like tubes xylem&phloem when they are absorbing water capillary action is taking place the cohesion of water molecules push water ; adhesion allows the water to stick to the sides
What is surface tension
Beads of water cohesion ; caused by h bonds that for a slightly impenetrable surface
How is surface tension formed ?
Surface tension is formed the the cohesion of water molecules.oxygen has. More of a electronegativity or pull on electrons. Water is a polar molecule due to the slightly negative oxygens and slightly positive hydrogens . Oxygen is attracted to other hydrogens by a hydrogen bond . Hydrogen bonds form cohesion. Cohesion forms surface tension .
How does water desolve compounds ?
The ionic bond is broken by a positive atom being attracted to the slightly negative O and a negative atom being attracted to the slightly positive H this keep the positive and negative atoms from reforming a bond
