Chapter 1 Vocabulary Chem
Terms
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- analytical chemistry
- concerned primarily with the composition of substances
- biochemistry
- the study of the chemistry of living organisms
- change
- alteration in matter
- chemical change
- alteration in a material without changing composition
- chemical property
- description of the ability of a substance to undergo a chemical change (reaction) and form a new substance.
- chemistry
- the science that studies the structure, composition, and properties of matter and the changes that matter undergoes
- compound
- Substance that can be separated into simpler substances only by chemical reactions
- data
- observations recorded from an experiment
- element
- simplest form of a material that can exist under normal laboratory conditions
- experiment
-
-a means of testing a hypothesis
-a carefully controlled set of observations of a behavior in nature - fluid
- any substance that takes the shape of its container
- gas
- the gasiest phase of a substance that is normally a gas.
- heterogeneous material
-
-a multi-phased material
-a material that is not uniform in composition and properties. - homogeneous material
-
-a single-phased material
-a material with uniform composition and properties - hypothesis
-
-a proposed reason for what is observed
-possible explanation for a behavior in nature - inertia
- resistance of a substance to any change in its state of motion
- inorganic chemistry
- concerns substances without carbon
- law
- concise statement that summarizes the results of a broad spectrum of observations and experiments
- mass
- the amount of matter a substance contains
- material
- a type of matter (not necessarily pure)
- matter
- anything that has the properties of mass, volume, and inertia.
- mixture
-
-a physical blend of something
-a heterogeneous material - observation
- noting and recording facts about a naural phenomenon using our senses (without tools and measuring devices)
- organic chemistry
- the study of essentially all substances containing carbon
- phase
- any part of a system with uniform composition and properties
- physical change
-
-alteration in a material without changing composition
-alteration in size, shape, or state of a material (not composition) - physical property
- a description of a substance observed or measured without changing the composition of the substance
- product
- new substance formed in a chemical reaction
- property
- a description of a substance
- qualitative observation
- a word description
- quantitative observation
- mathematical description
- reacant
- the starting substances in a chemical reaction
- science
- discovery and organization of facts (true statements) about nature
- scientific method
-
-an approach to the solution of scientific problems
-a series of steps used to discover facts about nature - solution
-
-a solute dissolved in a solvent
-a homogeneous miixture - substance
- a material that has uniform and definite composition
- technology
- the practical application of scientific facts to our daily lives
- theory
-
-a thoroughly tested explanation of why experiments give certain results
-a probable explanation of a behavior in nature - vapor
- the gasiest phase of a substance that is normally a solid or liquid
- volume
- amount of space a substance occupies