A measure of how much of a substance dissolves into in a given amount of another substance.
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Chemical Reaction
Change of a substance into a new one that has a different chemical identity.
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Magnetism
Force of attraction or repulsion between like or unlike poles.
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What is an atom?
The smallest part of an element.
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Are melting point and freezing point the same temperature?
Yes!!
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Physical Change
Changes the physical properties without changing the identity of the identity of the substance. (Ex: Ice melting)
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What elements have complete outer shells? What do we call these?
He, Ne, Ar - Noble Gases
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What does the atomic number represent?
Protons or Electrons
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What is chemistry?
The scientific study of matter, its properties, and interactions with other matter and energy.
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The Law of Conservation of Matter states....
1) Matter cannot be destroyed or created in chemical reactions. 2) In a chemical reaction, the total mass of the reactants equals the total mass of the pro
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What are three subatomic parts of an atom? (Include charges)
1. Proton (positive) 2. Neutron (no charge) 3. Electron (negative)
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Catalyst
a substance that causes or accelerates a chemical reaction. The catalyst was the yeast in elephant toothpaste.