Four Properties of Water
expansion upon freezing
versatility as a solvent
hydrogen bonds hold water molecules together
an attraction between different substance
as a liquid evaporates, its remaining surface cools
Moderation of Temperature
heat is absorbed and released
the dissolving agent of the solution
substance that is dissolved
a liquid that is a homogenous mixture of substances
water is solvent
ion surrounded by a sphere of water molecules when dissolved in water
substance that does not have affinity for water
substance that has affinity for water
a stable suspension of fine particles in a liquid
Is oil hydrophobic, hydrophilic, or a colloid?
Is paper hydrophobic, hydrophilic, or a colloid?
Is cotton hydrophobic, hydrophilic, or a colloid
hydrophilic and colloid
What allows water molecules to form hydrogen molecules with each other?
What is used to describe whether a solution is acidic or basic?
A substance that reduces H+ ion conc is called a base. True or False
What is the pH for a neutral solution?
A substance which has more OH- conc and less H+ conc is _____________
substances that minimize concentrations of H+ and OH- in a solution
rain, snow, or fog with a pH lower than 5.6
What is the valence for Carbon?
What are frequent partners of Carbon?
Hydrogen, Oxygen, and Nitrogen
Name the different types of variations in Carbon skeletons
What are isomers?
compounds with the same molecular formula but different structures
Different types of isomers
Structural, geometric, enantiomers
What are structural isomers?
different covalent arrangements
What are geometric isomers
differ in spatial arrangements
What are enantiomers?
mirror images of each other
What are functional groups?
components of organic molecules that are most commonly involved in chemical reactions
Name the seven functional groups discussed in class