Cohesion, Adhesion, strong surface tension, Capillary Action, Expands when freezes, Universal Solvent, Neutral pH, high specific heat, and high heat of vaporization.
200
What makes up atoms?
Protons, neutrons and electrons
200
What is the chemical formula for water?
H2O
200
What is cohesion?
Negative end of water molecule bonds to positive end of water molecule nearby.
300
What are the two types of chemical bonds?
Covalent and Ionic
300
What kind of charge does water have?
a partial negative charge and partial positive charge
300
What is/causes Adhesion?
Adhesion: water clings to other surfaces.
The polarity (the uneven distribution of electron density) of water attracts other substances.
400
what is and ionic bond?
an attraction of a negative ion to a positive ion.
400
Why does water have a partial negative and partial positive charge?
Because the covalent bonds in water have uneven sharing of electrons.
The oxygen's nucleus is more attracted to the shared electrons than to the hydrogen atoms' nuclei. So the electrons are closer to the oxygen nucleus than the hydrogen nuclei. Because electrons are negatively charged they give the oxygen a partial negative charge and the hydrogen atoms a partial positive charge
400
What is surface tension?
a measure of how difficult it is to stretch or break the surface of liquid.
Allows some insects to walk on the surface of water.
500
What is a covalent bond?
2 atoms overlap outer energy levels to share pairs of valence electrons.
500
What is Hydrogen Bonding?
A charged end of one water molecule attracts to the opposite charged region of water molecule nearby.