General Chemistry ACS Exam Study Guide with Complete Solutions
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Module
ACS Chemistry
Institution
ACS Chemistry
General Chemistry ACS Exam Study
Guide with Complete Solutions
chemistry - ️️ Correct-the study of matter, its properties, and the changes that matter
undergoes
matter - ️️ Correct-physical material of the universe
- anything that has mass and occupies space
property - ️️ Correct-...
General Chemistry ACS Exam Study
Guide with Complete Solutions
chemistry - ✔️✔️Correct-the study of matter, its properties, and the changes that matter
undergoes
matter - ✔️✔️Correct-physical material of the universe
- anything that has mass and occupies space
property - ✔️✔️Correct-any characteristic that allows us to recognize a particular type of
matter and to distinguish it from other types
element - ✔️✔️Correct-combinations of substances in matter
atom - ✔️✔️Correct-small building block of matter
- composition: kinds of atoms the matter contains
- structure: arrangement of atoms
molecule - ✔️✔️Correct-2+ atoms joined in specific shape
matter is characterized by... - ✔️✔️Correct-1. physical state
2. composition
gas - ✔️✔️Correct-- no fixed volume/shape
- uniformly fills container
- can be compressed or expanded
liquid - ✔️✔️Correct-- volume independent of container
pure substance - ✔️✔️Correct-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 - ✔️✔️Correct-an electrical current passes through a substance and
decomposes it into its component elements
mixture - ✔️✔️Correct-composition can vary (components)
- heterogeneous mixture: vary in texture/appearance
- homogeneous mixture: uniform throughout (aka solution)
physical properties - ✔️✔️Correct-observed without changing a substance's identity and
composition
- color, odor, density, melting point, boiling point, hardness
chemical properties - ✔️✔️Correct-the way a substance may react to form other
substances
- flammability
intensive property - ✔️✔️Correct-don't depend on amount of sample being examined
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