S.1.1.1 Elements, Compounds, and Mixtures Flashcards
Heterogeneous
Has non-uniform composition and varying properties
Homogeneous
Has uniform composition and properties throughout
Native Form
Made of one element
Chemical Compound
Atoms of different elements chemically bonded in a fixed ratio
Mixtures
Contains more than one element or compound in no fixed ratio, they are not chemically bonded, substances retain individual properties
Dispersion Force
Temporary attractive force due to the formation of temporary dipoles in nonpolar molecules
Metallic Bonding
Electrostatic force of attraction between valence (conduction) electrons and metal ions; lattice structure
Sharing of free electrons in a structure of positive ions
Lattice
A repeating pattern of structure
Filtration
A solid is separated from a liquid or gas
Solvation
Interaction between the solute and solvent molecules
Primarily through ion-dipole and hydrogen bonding attractions
Process of a solute being dissolved in a solvent
Residue
The remaining solid on the filter paper
Filtrate
Clear liquid obtained after filtration
Solute
A substance dissolved in a solution by solvent
Usually the minor component
Solvent
A substance in which a solute is dissolved
Usually the major component
Crystallization
Process of arranging molecules/atoms into a lattice to minimise their energy state
Smallest form is a unit cell
