Final Science Exam
periodic table, elements, chemical reactions, properties of matter, metals and nonmetals,solutions and solubility, acids and bases, earth science, etc.
Terms
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- process in which a solid becomes a gas
- sublimation
- signs of chemical reactions
- -gas produced -energy -light energy -odor -color change
- insoluble
- will not dissolve
- 3 rock types
- -igneous -sedimentary -metamorphic
- right side of an equation
- products
- process in which a liquid becomes a gas
- evaporation or boiling
- examples of chem. properties
- -gas produced -corrosion -acid test
- concentrated
- high solute per solvent
- saturated
- maximum amount of solute dissolved at a certain temperature
- Freeze Graph
- kinetic energy decreases...slows down
- gas
- no definite shape, mass, or volume
- properties of minerals
- -hardness -density -fracture/cleavage -luster -color -streak
- neutralization
- using acids(which has less than 7 pH) and a base (more than 7 pH) and producting salt and water with a pH of 7
- physical properties
- describe and don't alter substance
- groups
- vertical columns
- process in which a solid becomes a liquid
- melting
- left side of an equation
- reactants
- igneous rocks
- molten rock
- 1st energy level must contain
- 2 e-
- matter
- has volume and mass
- process in which a liquid becomes a solid
- freezing
- 4 types of reactions
- -synthesis -decomposition -single replacement -double replacement
- process in which a gas becomes a liquid
- condensation
- solid
- has a definite shape, mass, and volume
- acid rain
- pH= < 5.6
- constants in experiment
- variable doesn't change
- covalent bonding
- the sharing of electrons b/w atoms
- ratio of mass per unit
- density
- Conservation of Mass Law
- matter cannot be created or destroyed, but it can change forms
- dilute
- low solute per solvent
- liquid
- no definite shape...has mass and volume
- examples of physical properties
- -color -size -texture -weight -odor
- pH scale
- 0-5=acids 6-8=neutral 9-14=bases
- what does the arrow mean?
- yields
- properties of nonmetals
- -no luster -all states -all colors -5 or more valence electrons -poor conductors
- dependent variable on what axis?
- y-axis
- metamorphic rocks
- high heat and pressure
- overall charge of an atom
- NEUTRAL!
- Melting Graph
- kinetic energy increases....goes faster
- neutrons
- -no charge -inside nucleus -1 mass
- atomic mass
- # of protons + # of neutrons
- electrons
- - -charge -outside nucleus -0 mass
- protons
- -+charge -inside nucleus -1 mass
- can still dissolve more solute
- unsaturated
- homogeneous
- same throughout
- solvent
- substance in which solute dissolves
- supersaturated
- more solute than max is dissolved by increasing temp and slowly lowering temp
- The independent variable is show on what axis?
- x-axis
- solute
- substance being dissolved
- properties of metals
- -luster -silver -good conductors -3 or more valence electrons -solid
- chemical properties
- describe while changing material
- periods
- horizontal rows
- stairway seperates....
- metals from nonmetals
- minerals
- -naturally occuring -solid -inorganic -definite chemical composition -crystalline structure
- heterogeneous
- not the same throughout
- sedimentary rocks
- sediments compacted and cemented
- ionic bonding
- transfer of electrons b/w atoms in order for the atoms to become stable
- periodic table is arranged according to...
- atomic number
- 2nd energy level must contain
- 8 e-
- normal rain
- pH= 5.6
- atomic number
- # of protons