Chemisty Flashcards
Covalent
Covent bonds form when electrons are shared equally
Ionic
Ionic bonds form between two atoms when one or more electrons are transferred from one atom to another.
Nonpolar covalent
Bonds form when electrons are shared equally.
Polar covalent
Form when electrons are shared unequally.
Single covalent, double covalent, and triple covalent bonds are formed when?
When two, for and six electrons are shared respectively.
Hydrogen bonds
Hydrogen bonds are week bonds between molecules. They form when a positively charged hydrogen atom in one covalent bond molecule is attracted to a negatively charged area to the molecule.
Describe a hydrogen bond in water.
In water the positive pole around the hydrogen atom form a hydrogen bond to the negative poles around the oxygen atom of another water molecule.
Solute
A substance that dissolves in a solvent.
Specific heat capacity
Is the degree to which a substance changes temperature in response to heat.
Heat of fusion
The energy required to change water from a solid to a liquid.
Heat of vaporization
It is the energy required to change water from liquid to a gas.
Cohesion
Attraction between like substances
Adhesion
It is the attraction of unlike substances.
Capillary action
When water a hears to the walls of narrow tubing or to absorb solid like paper, it demonstrates capillary action by rising up the tubing or creeping through the paper.
Organic
Molecules that have carbon atoms.