Question | Answer |
An observation characteristics made without measurement | qualitative properties |
Observations with measurement (usually with equipment). | quantitative properties |
Another phrase for chemical change | chemical reaction |
A substance that cannot be broken down or decomposed into simpler substances | element |
A combination of two or more substances where the properties or identities of each substance are retained | mixture |
Two or more different substances physically combined | mixture |
A chemical combination of two or more different elements in a fixed proportion (ratio) | compound |
A mixture that is the same throughout or homogeneous | solution |
A combination of chemical symbpls showing the composition of a substance and the number of atoms for each element | chemical formula |
A modification of matter where the identity or composition remains the same | physical change |
A solid solution or homogeneous mixture of 2 or more metals,and sometimes nonmetallic substances | alloy |
A physical change or chemical reaction that releases energy | exothermic |
A physical change or chemical reaction that absorbs or takes in energy | endothermic |
A substance that easily changes to the gas state at room temperature, and often has an odor. | volatile |
A characteristic of matter exhibited without a change in identity. | physical property |
A homogeneous mixture where water is the solvent | aqueous solution |
A homogeneous mixture or solution where alcohol is the solvent | tincture |
An alloy where mercury is one of the metals present in the mixture | amalgam |
A type of property only observed when there is a change in the composition of a substance | physical property |
The measure of the amount of matter a substance contains | mass |
The amount of space a substance occupies (takes up) | volume |
A property dependent on the amount of matter present | extensive (physical) property |
A property that does NOT depend on the quantity of matter, but reflects the nature of the substance. | intensive (physical) property |
Any characteristics that describe matter or how it behaves | properties |
The amount of matter in a given unit of volume | density |
The science that studies the properties, interactions, and composition of matter | chemistry |
Characteristics of matter observed or measured without a change in composition | physical properties |
smell | odor |
shine | luster |
A physical property indicating a substance is able to be hammered or bent into different shapes (usually linked to metals) | malleability |
A physical property indicating a substance may drawn into thin wire (usually linked to metals) | ductility |
The amount of solute that can dissolve in a given amount of solvent at given conditions | solubility |
A substance that will easily dissolve | soluble |
A property indicating that a substance does NOT interact or react to another form of matter | inert |
A physical change from one state of matter to a new state of matter | phase change |
A substance that breaks apart easily indicating a low degree of hardness | brittle |
A substance or mixture that allows light to pass and your eye to see through it | transparent |
clear | transparent |
A substance or mixture that allow light to pass but the eye is NOT able see through it | translucent |
A substance or mixture that do NOT allow a person to either pass light or visually see through it | opaque |
A general phyiscal property indicating if a person can see through it or if it will allow the passage of light | opacity |
A property that can be observed only when there is a change in the composition of a substance | chemical property |
Characteristics that describe how a substance will interact or behave with other types of matter | chemical property |
A chemical property of any substance that has the ability to burn or explode | combustibility |
A chemical property that shows a substance will rust | oxidizes |
A chemical property of any substance that has the ability to catch on fire | flammability |
A change that always creates new substances with properties different from the original substances | chemical change |
A change in the composition and properties of one or more substances | chemical change |
A solution containing the maximum amount of solute for a given amount of solvent at a specific temperature. Any additional solute will settle to the bottom of the container | saturated |
A solution containing less than the maximum amount of solute for a given amount of solvent at a specific temperature. Additional solute would continue to dissolve. | unsaturated |
A solution with more than the maximum amount of solute for a given amount of solvent achieved by HEATING the solution to dissolve the extra solute then allowing it cool | supersaturated |
Any substance that will NOT dissolve in a solvent | insoluble |
The substance being dissolved in a solution, and is usually present in smaller quantities. | solute |
The substance taking action or doing the dissolving, and is present in larger quantities. | solvent |
A heterogeneous mixture that scatters light, doesn't settle out, but looks homogeneous to the eye. | colloid |
Method for testing if a mixture is a colloid or suspension by determining if it will scatter light | Tyndall Effect |
A temporary solution or a heterogeneous mixture that will eventually settle out or create layers | suspension |
Type of matter that will not decompose | element |
Matter that is 2 or more element chemically combined | compound |
Matter that has a fixed composition | compound |
Matter that is 2 or more substances physically combined or separated | mixture |
Matter that is evenly distributed resulting in samples that would appear identical | homogeneous |
Matter that is unequally distributed resulting in samples that would have different appearances or properties | heterogeneous |
Matter composed of only one kind of atom | elements |