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General Chemistry ACS Exam 2024/2025 Questions With Completed & Verified Solutions.
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General Chemistry ACS Exam 2024/2025 Questions With Completed & Verified Solutions.
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General Chemistry ACS Examchemistry - ANS the study of matter, its properties, and the changes that matter undergoes
matter - ANS physical material of the universe
- anything that has mass and occupies space
property - ANS any characteristic that allows us to recognize a particular type of matter and to
distinguish it from other types
element - ANS combinations of substances in matter
atom - ANS small building block of matter
- composition: kinds of atoms the matter contains
- structure: arrangement of atoms
molecule - ANS 2+ atoms joined in specific shape
matter is characterized by... - ANS 1. physical state
2. composition
gas - ANS - no fixed volume/shape
- uniformly fills container
- can be compressed or expanded
liquid - ANS - volume independent of container
- assumes shape of container
- not compressible
solid - ANS - definite shape and volume
- not compressible
pure substance - ANS matter that has distinct properties and a composition that doesn't vary
from sample to sample
- element: cannot be decomposed into simpler substances
- compound: composed of 2+ elements
- mixture: combinations of 2+ substances; retains chemical identity
electrolysis - ANS an electrical current passes through a substance and decomposes it into its
component elements
mixture - ANS composition can vary (components)
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