Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
atom
|
smallest part of an element that has all the characteristics of that element
|
|
|
change of state
|
PHYSICAL change of a substance form one state to another
|
|
|
mixture
|
blend of two or more kinds of matter, each of which contain its own properties
|
|
|
chemical property
|
the ability to undergo changes and form new substances
|
|
|
chemical reaction/chemical change
|
a change when one or more substances are converted into different substances
|
|
|
compound
|
two or more elements chemically combined in a definite ratio
|
|
|
element
|
simplest form of matter; pure substance, cannot be broken down by ordinary chemical means;
|
|
|
extensive property
|
depends on amount of substane present (vloume, mass, amount of enerygy)
|
|
|
gas
|
neither definite volume nor definite shape
|
|
|
homogeneous mixture
|
the same throughtout
|
|
|
heterogeneous mixture
|
not uniform throughtout, mas many layers or boundaries
|
|
|
intensive property
|
does not depend on amount of substance (boiling point, density and ability to conduct energy and heat)
|
|
|
liquid
|
particles are not as close as in a solid and not as far apart as those in a gas; definite volume, but not definite shape- takes shape of container
|
|
|
mass
|
the measure of the amount of matter
|
|
|
matter
|
anything that has mass and takes up space
|
|
|
physical change
|
does not change the composition (identity) of the substance (cutting, grinding)
|
|
|
physical property
|
observed or measured without changing that substance
|
|
|
plasma
|
fourth state of matter in which aatoms lose their electrons
|
|
|
product
|
result of chemical reaction
|
|
|
pure substance
|
substance with a fixed composition
|
|
|
reactant
|
substances that rect to form a new substance
|
|
|
solid
|
particles packd tightly, definite volume and definite shape
|
|
|
solution
|
homogeneous mixture
|
|
|
chemical
|
any substance that has definite composition
|
|
|
chemistry
|
the study of structure, properties, and composition of matter and the changes it undergoes
|
|
|
family
|
vertical columns on periodic table
|
|
|
metal
|
good conductors of heat and electricity, mostly solid, malleable and ductile, on left side of staircase
|
|
|
metalloid
|
semiconductor; intermediate roperties of metals and nonmetals, ALWAYS GASES, located on the staircase (except aluminum)
|
|
|
nonmetal
|
on righ side of staircase on periodic table; do not conduct heat and electricity well, mostly gas at room temperature
|
|
|
period
|
horizontal rows of the periodic table
|
