Shared Flashcard Set

Details

Module 4: Classifying Matter and Its Changes
vocabulary
23
Chemistry
12th Grade
09/23/2011

Additional Chemistry Flashcards

 


 

Cards

Term

Substance that contains

only one element or compound (99)

Definition
Pure substance
Term
Substance that contains different compounds and/or elements (99)
Definition
Mixture
Term

Mixture with a composition

that is always the same

no matter what part of the sample

you are observing (103)

Definition
Homogeneous mixture
Term

Mixture with a

composition that is different

depending on what part of the sample

you are observing (103)

Definition
Heterogeneous mixture
Term

A change that affects

the type of molecules or atoms

in a substance (106)

Definition
Chemical change
Term

A change in which

the atoms or molecules in a substance

stay the same (106)

Definition
Physical change
Term

Process by which

a substance changes from one phase

(solid, liquid, or gas)

to another phase (109)

Definition
Phase change
Term

Process by which

a substance changes from its solid phase

to its liquid phase (112)

Definition
Melting
Term

Process by which

a substance changes from its liquid phase

to its solid phase (109)

Definition
Freezing
Term

Process by which

a substance changes from its liquid phase

to its gas phase (109)

Definition
Boiling
Term

Process by which

a substance changes from its gas phase

to its liquid phase (109)

Definition
Condensing
Term

One of three states of matter: 

solid, liquid, or gas (109)

Definition
Phase
Term

Theory that the atoms or molecules

which make up a substance

are in constant motion,

and the higher the temperature,

the greater their speed. (111)

Definition
Kinetic Theory of Matter
Term

Temperature at which

a substance changes from its solid phase

to its liquid phase (112)

Definition
Melting point
Term

Temperature at which

a substance goes from its liquid phase

to its gas phase. (112)

Definition
Boiling point
Term

Process by which

one or more substances change

into one or more different substances (115)

Definition
Chemical reaction
Term

A representation

of a chemical reaction (115)

Definition
Chemical equation
Term

A molecule composed of

two identical atoms (115)

Definition
Homonuclear diatomic
Term
Nitrogen, oxygen, chlorine, and fluorine are 4 of the 8 homonuclear diatomics.  Name the other 4.
Definition
bromine, iodine, astatine, hydrogen
Term
Bromine, iodine, astatine, and hydrogen are 4 of the 8 homonuclear diatomics.  Name the other 4.
Definition
Nitrogen, oxygen, chlorine, fluorine.
Term

Why are the folowing elements significant?

N2, O2, Cl2, F2, Br2, I2, At2, H2.

(115)

Definition
They are not composed of individual atoms; they are homonuclear diatomics.
Term
Substances found on the right side of a chemical equation (116)
Definition
Products
Supporting users have an ad free experience!