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100
the study of the composition of matter, with a focus on separating, identifying, and quantifying chemical samples.
What is analytical chemistry
100
a group that experiences the same conditions as the experimental groups with the exception of the variable that is being tested.
What is control group
100
is a property that depends on the amount of matter in a sample.
What is extensive property
100
a change that produces matter with a different composition.
What is chemical change
100
he ability of a substance to undergo a specific chemical change.
What is chemical property
200
chemistry that is directed toward a specific practical goal or application.
What is applied chemistry
200
an experiment is the variable that is changed during an experiment.
What is independent variable
200
anything that takes up space
What is mass
200
an expression that shows the elements in a compound and the relative proportions of those elements.
What is chemical formula
200
a process that occurs when one or more substances are changed into one or more new substances.
What is chemical reaction
300
the study of chemicals that do not, in general, contain carbon. Inorganic chemicals are commonly found in rocks and minerals.
What is inorganic chemistry
300
an explanation that has been repeatedly tested and confirmed by multiple researchers and has gained wide acceptance.
What is theory
300
a property of matter that depends only on the type of matter in a sample and not on the amount.
What is intensive property
300
a method of separating a mixture based on differences in boiling points.
What is distillation
300
a solid product that forms from a reaction and settles out of a liquid mixture.
What is precipitate
400
the study of chemical processes that occur in living things.
What is Biochemistry
400
an experiment is the variable that is observed during an experiment.
What is dependent variable
400
a characteristic of a substance that can be observed or measured without changing the identity of the substance.
What is physical property
400
a technique that separates solids from liquids in a heterogeneous mixture
What is filtration
400
a substance that is present at the start of a chemical reaction.
What is reactant
500
substances and objects that can be seen, touched, and measured directly.
What is macroscopic
500
a statement that summarizes the results of many observations and experiments and to which there are no known exceptions.
What is scientific law
500
a change to a sample of matter in which some properties of the material change, but the identity of the matter does not.
What is physical change
500
a sample that has a uniform composition and properties.
What is phase
500
a substance that is present at the end of a chemical reaction.
What is product