scientific notation - ️️a way to write very large or very small numbers into
manageable terms
geochemistry - ️️study of chemical composition of ores, soils, and minerals of the
surface of the Earth and other planets
chemistry - ️️the study of composition, structure, properties, and ...
CHM 1025 - Exam 1 Review
scientific notation - ✔️✔️a way to write very large or very small numbers into
manageable terms
geochemistry - ✔️✔️study of chemical composition of ores, soils, and minerals of the
surface of the Earth and other planets
chemistry - ✔️✔️the study of composition, structure, properties, and reactions of matter
matter - ✔️✔️anything that occupies space and mass which can be classified by state
and by composition
organic chemsitry - ✔️✔️study of substances that contain the element carbon
biological chemistry - ✔️✔️study of chemical reactions that take place in biological
systems
physical chemistry - ✔️✔️study of the physical nature of chemical systems, which
include energy changes
qualitative observations - ✔️✔️such things as color change or bubbling
quantitative observations - ✔️✔️observations that can be measured numerically as
data
hypothesis - ✔️✔️a proposed explanation of an observation made
experiment - ✔️✔️a set of procedural steps used to test the hypothesis
scientific theory - ✔️✔️allows you to predict behavior based on your experiment snd
describes the underlying cause of physical behavior
scientific law - ✔️✔️a brief statement that summarized past observations and predicts
future ones
precision - ✔️✔️depends on the number of times you get the same result
accuracy - ✔️✔️depends on the degree of closeness to the actual value
thermal energy - ✔️✔️energy due to a change in temperature
, solid - ✔️✔️has a fixed shape and volume, which is incompressible
liquid - ✔️✔️variable shape with a fixed volume and is incompressible
gas - ✔️✔️has a variable shape with variable volume and is compressible
composition of matter - ✔️✔️can be broken down into a pure substance or mixture
pure substance - ✔️✔️a substance containing only one type of atom or molecule
element - ✔️✔️a pure substance containing only one kind of atom
compound - ✔️✔️a pure substance made up of two or more elements/molecules
mixture - ✔️✔️a substance composed of two or more different types of atoms or
molecules that can be combined in variable proportions
heterogeneous mixture - ✔️✔️a solution mixed unevenly throughout the solution
homogeneous mixture - ✔️✔️a solution mixed evenly throughout the solution
physical properties - ✔️✔️describe the appearance of the type of matter
extensive property - ✔️✔️depends on the amount of a substance present
intensive property - ✔️✔️does not depend on the amount of the substance present
chemical property - ✔️✔️one that a substance displays only by changing its
composition via a chemical change
physical change - ✔️✔️occurs when you only change the state of the substance and
not the identity of the substance
chemical change - ✔️✔️occurs when a reaction occurs; when you change the chemical
make up of the substance from what you started with
dimensional analysis - ✔️✔️the process of using unit ratios known as conversion
factors to convert units to a desired representation
conversion factor - ✔️✔️an invertible ratio of equivalent units represented equal to 1
density - ✔️✔️describes how much it weighs compared to its size
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