C1.1 - Key Words
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Last updated 8:37 AM on 4/27/23
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10 Terms
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Atom
Smallest particle of an element. Atoms have a nucleus containing protons and (usually) neutrons, surrounded by electrons
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Chemical change
Change that produces new substances
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Chemical reaction
Process in which substances react to form different substances
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Electrostatic forces
Forces of attraction or repulsion between electrically charged particles
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Matter
Anything that has mass
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Model
Description, analogy, or equation that helps you to explain the physical world
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Particle
Tiny piece of matter, such as an atom, ion, or molecule
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Particle model
Scientific idea used to explain the properties of solids, liquids and gases
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Physical change
Change, such as changes in state, that does not result in new substances being made
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State
The form that a substance has (solid, liquid, or gas) under given conditions of temperature and pressure
Note 
Flashcards (39)