Question | Answer |
study of composition, structure, and properties of matter and the changes it undergoes | Chemistry |
chemistry of carbon compounds | Organic Chemistry |
study of compounds that do not contain carbon | Inorganic Chemistry |
study of the properties and changes of matter and their relation to energy | Physical Chemistry |
identification of components and composition of materials | Analytical Chemistry |
chemistry of living things | Biochemistry |
use of math and computers to understand the principles behind observed chemical behavior | Theoretical Chemistry |
doing research for the sake of gaining knowledge | Basic Research |
generally carried out to solve a problem | Applied Research |
involves the production of products that improve our way of life | Technological Development |
anything that has mass and volume | Matter |
measure of the amount of matter | Mass |
how much space something takes up | Volume |
smallest unit of and element | Atom |
pure substance made of only one kind of atom | Element |
made of 2 or more kinds of atoms chemically bound together | Compound |
depends upon the amount of matter present | Extensive Properties |
do not depend on the amount of matter present | Intensive Properties |
one which you can observe without changing the substance | Physical Properties |
has a definite shape and volume | Solid |
has a definite volume but and indefinite shape | Liquid |
Has neither a definite shape or volume | Gas |
high temperature physical state of matter in which atoms loses their electrons | Plasma |
relates to a substances ability to undergo changes that transforms it into different substances | Chemical Properties |
a blend of 2 or more kinds of matter; each retains its own properties | Mixture |
solution like saltwater, tea | Homogeneous Mixture |
not uniform throughout like sand and water, oil and water, wood, blood | Heterogeneous Mixture |
has a fixed composition | Pure Substance |
table that organizes all known elements | Periodic Table |
vertical columns that have similar chemical properties and have the same number of valence electrons | Groups or Family |
horizontal rows. physical and chemical properties change somewhat regularly across a period and same energy levels | Periods |
good conductors of heat and electricity
solid- many are malleable( pound into different shapes) and ductile (can be drawn out into a wire)
most metals have a luster (shiny or a silvery grayish appearance) | Metal |
not good conductors
tend to be brittle
gases (mostly) at room temperature | Nonmetal |
have some characteristics of metals and some of nonmetals
solids at room temperature
tend to be semiconductors of electricity | Metalloids |
group 18 and nonreactive and many times are used in lighting | Noble Gases |
is used to measure liquids | Graduated Cylinder |