Atoms, Molecules, Ions, Bonds
Ex.Sodium (Na+) and Clhrorine (Cl-) ions bond and form a molecule of sodium chloride (NaCl)
- Nonpolar covalent bonds form when electrons between atoms are shared equally. Ex. Two identical atoms sharing electrons such as oxygen gas (O_2)
- Polar covalent bonds form when electrons between atoms are unequally. Ex. Water (H20) and electrons are shaered between the oxygen atom and each hydrogen atom
- Single colvalent, double covalent, and triple covalent bonds form when two, four, and six electrons are shared, respectively.
Properties if Water
Cohesion and high surface tension
The strong cohesion between water molecules produces a high surface tension creating a firm water surface.
Adhesion and Capillary action
By rising up the tubing or creeping through the paper