Chapter Test 1-3 Flashcards
dissolving salt in water - p or c
p or c
iron rusting to produce iron oxide - p or c
c
bending clay - p or c
p
exploding dynamite - p or c
c
oxidation of aluminum - p or c
c
wine transforming into vinegar - p or c
c
freezing water - p or c
p
cutting a piece of paper - p or c
p
condescending water - p or c
p
combing sodium and chlorine to form salt - p or c
c
oxygen is an example of this
element
solutions are contained within this category
homogenous mixture
water is an example of this
compound
a substance that is composed of only one type of atom
element
a sugar water mixture in which all the salt has been dissolved
homogenous mixture
two different elements chemically combined
compound
all of these are located on the periodic table
element
a mixture that is non-uniform
heterogeneous mixture
oil and water
heterogeneous mixture
a physical combination
homogenous and heterogeneous mixture
how hormones are produced in the brain
biochemistry
use computers and math to predict the effects of carbon dioxide on the atmosphere
theoretical chemistry
study of compounds that do not contain carbon
inorganic chemistry
a forensic scientist identifies the composition of evidence collected at a crime scene
analytical chemistry
the study of carbon compounds
organic chemistry
a student studies the change in temperature when salt is added to water
physical change
which property is extensive
mass
four darts are thrown at the dartboard and all land close to each other and at the bull’s eye
accurate and precise
what is qualitative?
deposits are formed from an evaporated liquid (the determination of non-numerical information about a chemical species, a reaction, etc)
which observation is quantitative?
water changes temperature by two degrees at 100 degrees Celsius
the space that an object takes up is
volume
a theory is best described as
seeks to describe the underlying physical phenomena that give rise to chemistry and the properties of atoms, molecules, and materials.
the four major states of the scientific method are
observing, formulating hypotheses, testing hypotheses, and theorizing
the smallest unit of an element that has the properties of that element is a(n)
atom
