GEN CHEM REVIEWER

• Intermolecular Forces 


  are forces that exist between molecules
• London dispersion force


  type of reaction that exists between two nonpolar molecules
• London dispersion force


  Type of force that is present in molecule of METHANE
• Dipole-dipole interaction


  general type of reaction that exists between two nonpolar molecules and influences their physical properties
• Ion-dipole interaction


  type of interaction between an ion and polar molecule
• Ion-dipole interaction


  It is the major intermolecular forces that contribute to the dissolution of NaCI in water
• Hydrogen Bonding


  Type of interaction that exists between a hydrogen and electronegative pair of atom
• Hydrogen bonding


  A type of force that is present in hydrofluoric acid
• Rate Law


  expresses the relationship of the rate reaction to the rate constant and the concentration of the reactants raised to same powers
• Hess Law


  States that the enthalpy for a reaction is the same wether the reaction takes place in one or a series of steps
• Ionic solid


  compose of cations and anions held together by electrostatic forces
• Molecular solid


  composed of discrete molecules held together by intermolecular forces Ex. Frozen water H2O
• Network solid


  a substance made up of array of repeating covalently bonded atoms Ex. Diamond, Silica SiO2
• Adhesion


  An attraction that is present in liquid molecules climbing up to the walls of the test tube
• Cohesion 


  It is the attraction of liquid to itself (water like to stick to itself)
• Adhesion


  Means the water likes to stick to other things
• Density


  describe how much space an object or substance takes up its volume in relation to the amount of matter in that object or substance (its mass)
• Specific Heat


  The amount of heat required to raise the temperature of on gram of substance by one degree Celsius
• State function


  refers to the properties determined by the phase of a system, regardless of how a conditioned as achieved
• Surface area


  is the area of chemical substances used in chemical reaction
• Presence of catalyst


  Is one of several factors that influence the rate of chemical reactions. If the activation energy is reduced more reactants can cross the energy barrier easily.
• Temperature 


  Increasing the temperature increases the average speed of reactants molecules.
• Concentration


  Is the quantity of solute that is contained in a particular quantity of solvent or solution
• Temperature 


  As more molecules move faster, the number of molecules moving fast enough react increases, which results in faster formation of products.
• Catalyst


  Is a substance thats speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction
• Entropy


  Is simply a measure how much the energy of atoms and molecules become more spread out in a process
• Catalyst


  Is the process of adding a catalyst to facilitate a reaction
• Mettalic solid


  a compound made up of metal atoms beings held together by metallic bonds. Ex. Na (Sodium)
• Specific heat


  Water has a high specific heat, meaning it takes more energy to increase the temperature of water compared to other substances.