(Chap 1) Properties of Matter Flashcards
it is defined as the study of
matter and the changes it undergoes
chemistry
Everything in the universe has a _____________
connection.
“chemical”
types of pure substance
element and compound
two types of matter
pure substance
mixture
has constant chemical composition and distinct
properties
pure substance
Fundamental substance; cannot be separated into simpler substances by chemical methods
element
substance composed of two
more elements in fixed
proportions; separable into
simpler substances only by
chemical methods
compound
example of element in pure substance
sodium (Na)
chlorine (Cl2)
example of compound in pure substance
sodium chloride (NaCl)
consists of two or more pure substances that retain their identities
mixture
two types of mixture
heterogenous and homogenous
mixture not uniform in composition and properties
heterogenous
example of mixture
milk
halo-halo
mixture having uniform composition and properties throughout
homogenous
also called solutions
homogenous
example of homogenous
salt solution
Separation of components from a liquid mixture by using selective boiling and condensation
distillation
Separates mixtures based on differences in solubility
crystallization
the particles are held together strongly
solid
it has a fixed shape and a fixed volume
solid
the particles are separated by spaces that are large enough to allow the particles to slide past each other
liquid
it has no fixed shape
liquid
Liquid particles are held close
together, therefore, a liquid has a
____________
fixed volume
the particles are separated by much larger spaces
gas
it is mostly empty space
gas
what phase occur during gas to solid?
deposition
what phase occur during solid to gas?
sublimation
what phase occur during solid to liquid?
melting
what phase occur during liquid to solid?
freezing
what phase occur during liquid to gas?
vaporization
what phase occur during gas to liquid?
condensation
what are the chemical properties
Tendency to undergo chemical
changes
The identity of the substance
changes
give atleast 3 chemical reactions that happens in our daily life
combustion
digestion
photosynthesis