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Definition
The total amount of matter remains constant during a chemical change.
Ex. Burning wood
Mercury and oxygen create mercury oxide. |
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Definition
State of matter where the form of matter is characterized by rigidity. It has a fixed shape and volume.
Ex. Table, spoon, person |
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Definition
State of matter that does not have a fixed shape but a fixed volume.
Ex. Water, milk |
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Definition
State of matter that does not have a fixed shape or a fixed volume.
Ex. Oxygen, helium |
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Definition
A characteristic that can be observfor and does not change the chemical identity.
Ex. color, melting point, state |
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Definition
A characteristic that involves changing the chemical identity of a material.
Ex. Ability to rust, ability to burn, number of protons and neutrons |
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Definition
A change in the form of matter but not in its chemical identity.
Ex. Water evaporating, ice melting |
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Definition
One or more kinds of matter create new matter.
Ex. Iron and oxygen (rusting), burning wood |
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Definition
| A substance that has constant throughout the material. A homogeneous material. |
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Definition
| A substance that does not have constant properties throughout the material. |
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Definition
A substance that cannot be decomposed by any chemical reaction into simpler substances.
Ex. Hydrogen, helium, oxygen |
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Definition
A substance composed of two or more elements chemically combined.
Ex. Carbon monoxide, carbon dioxide, water |
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Definition
A material that can be separated by physical means into two or more substances.
Ex. salad dressing, chocolate milk, sea water |
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Definition
| A material that contains physically distinct parts. You can see the different parts. |
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Definition
| A material that is uniform and the different parts are not visible. |
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Definition
A physical quantity whose value does not depend on the amount of the substance for which it is measured.
Ex. density, viscosity |
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Definition
A physical quantity which is the sum of the properties of separate noninteracting subsystems that compose the entire system
Ex. energy, mass |
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Definition
| A term for the set of labratory techniques for the separation of mixtures. There are three types: gas, liquid, and supercritcal fluid chromatography. |
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Term
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Definition
| Gas chromatography is the process of taking a sample and injecting it into the instrument, turning the solvent and analytes into gaseous form, and separating the mixture of compounds into individual peaks. |
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Term
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Definition
| Liquid chromatography completes the same process except the separations occur in a liquid phase. |
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Term
| Supercritical Fluid Chromatography |
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Definition
| Supercritical fluid chromatography is a form of chromatography that is used for the analysis and purification of low to moderate molecular weight, thermally labile molecules. |
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Term
| Application of the Affinity Method in a Lab |
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Definition
| The affintiy method can be used to separate mixtures or compounds. |
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