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38 Cards in this Set
- Front
- Back
Solid |
Matter that is firm and stable in shape; not liquid or gas |
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Liquid |
Matter that is flowing freely but has constant volume |
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Gas |
Airlike fluid matter which moves freely to fill any space available |
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Matter |
Anything that has mass and volume |
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Atom |
The basic building block of all matter |
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Physical Properties |
characteristics that can be observed without changing the substance |
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Chemical Properties |
Properties that can only be observed by changing the original substance into a new one |
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Luster |
The ability to reflect light |
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Malleability |
The ability to reshaped |
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Mass |
The amount of space something takes up |
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Characteristic Properties
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A physical property that doesn't change based on amount of substance |
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Magnetism |
Whether or not an object/subtance draw, pull, or repel objects or substances. |
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Hardness |
the quality or condition of being hard |
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Texture |
The feel or apperence of an object or subtance |
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Boiling Point |
The temperature where liquid changes to gas |
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Melting Point |
The temperature where solid becomes liquid; same temperature where the substance will freeze |
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Flammability |
How easily a subtance/object can ignite |
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Oxidation |
When exposed to oxygen they chemically react to form things |
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pH |
How acidic or basic a substance is when dissolved in water |
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Chemical Reaction |
process that involves changes in the structure and energy content of a subtance |
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Subatomic |
Particles that are the smaller parts that make up an atom |
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Nucleus |
The center of an atom made up of protrons and neutrons |
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Orbital Shell |
The shells that the atoms orbit around the nucleus |
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Valence Shell |
The outermost shell of the atom where the valence electrons orbit around in. |
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Protron |
Positiviely charged: found IN the nucleus; mass of 1 atomic mass unit (amu) |
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Neutron |
No Charge: found IN the nucleus; mass of 1 amu |
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Electron |
Negatively Charged: found in the electron cloud, much smaller than protrons and nutrons. |
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Atomic Bond |
When two or more elements chemically combine (go through a chemical change. |
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Covalent Bond |
A bond that occurs between two or more non-metals share electrons |
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Ionic Bond |
When an atom transfers an electron to another atom in order to become more stable and form a bond. Numbers of electrons lost must be equal as number of electrons gained. |
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Hydrogen Bond |
When two hydrogen within a molecule or compound bond |
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Exothermic |
A chemical reaction that make the surrounding area warmer and cause fire to the surrounding area. |
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Endothermic |
A chemical reaction that absorbs heat, will make the surrounding air colder and may freeze the surrouding objects. |
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Precipitate |
A substance formed from a chemical reaction. |
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Catalyst |
A subtance whose purpose is to speed up a chemical reaction. |
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Reactant |
A subtance that changes a chemical reaction. |
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Product |
What's formed form a chemical reaction. |
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Chemical Formulae |
Way of expressing chemical compounds using symbols and subscripts. |