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Chemistry Vocab Quiz
| Question | Answer |
|---|---|
| Matter | anything that has mass and takes up space |
| Pure Substance | Any one type of material. Cannot be separated without changing the substance. |
| Element | contain only one type of matter. It cannot be separated into simpler materials. it is found on the periodic table. |
| Compound | Contains more than one kind of matter that are chemically joined together. It cannot be physically separated. |
| You know you have a compound when you more than one what? | Capital letter |
| Mixtures | A combination of two or more pure substances that are NOT chemically combined. They are physically combined and can be easily seperated by physical means such as filtering, cooling,sorting, or heating. |
| Homogeneous Mixture | A mixture that is the same throughout. They are often solutions. |
| Heterogeneous Mixture | A mixture that is not the same throughout |
| Properties of Matter | how we describe and classify matter |
| Physical Properties | can be observed or measured without changing the composition |
| Intensive Properties | Properties that do NOT depend on the amount of matter present. |
| Extensive Properties | properties that do depend on the amount of matter present |
| Chemical Properties | properties of matter that may be measured by performing a chemical reaction. |
| Characteristic Properties | a chemical or physical property that helps you identify and classify substances |
| Density | describes the relationship between the mass and volume of an object. Describes how tightly packed atoms are. |
| Is density a chemical or physical property? | physical (intensive) |
| Hardness | measures how difficult it is to scratch an object |
| Elasticity | measures and objects ability to be stretched and returned to its original size |
| Brittleness | measures an objects tendency to shatter upon impact |
| Mallleability | Measures how easy it is to pound something into thin sheet |
| Tensile Strength | measures how hard it is to break something by pulling it. Important property of fibers or wires. |
| Is hardness a physical or chemical property? | physical (intensive) |
| Is Elasticity a chemical pr physical property? | physical (intensive) |
| Is brittleness a chemical of physical property? | Physical (intensive) |
| Is malleability a physical or chemical property? | physical (intensive) |
| Is tensile strength a physical or chemical property? | physical (intensive) |
| Buoyancy | The force exerted on an object in a liquid is equal to the weight of the fluid displaced by the object. if the Buoyancy force is greater than its weight, the object floats. |
| Is buoyancy a physical or chemical property? | physical (intensive) |
| Viscosity | measures how slowly a liquid pours. |
| Is viscosity physical or chemical? | physical (intensive) |
| Phase | the states in which matter can exist: solid, liquid, or gas. |
| is phase chemical or physical? | physical (intensive) |
| conductivity (heat or electricity) | a measure of a materials ability to conduct an electric current |
| is conductivity physical or chemical? | physical (intensive) |
| Solubility | measure of one substances ability to dissolve |
| is solubility chemical or physical? | physical (intensive) |
| Magnetism | a physical property produced by the motion of electric charge, resulting in attractive and repulsive forces between objects. |
| is magnetism chemical or physical | physical (intensive) |
| Freezing Point | the temperature at which the liquid freezes to become a solid |
| Melting point | the temperature at which the solid melts to become a liquid |
| Is freezing point chemical or physical? | physical (intensive) |
| Is melting point chemical or physical? | physical (intensive) |
| Boiling Point | the temperature at which the vapor pressure of liquid equals the pressure surrounding the liquid and the liquid changes into a vapor. |
| Is boiling point chemical or physical? | physical (intensive) |
| Ductility | the ability of a material, like steel, to be drawn out into thin wires |
| is ductility chemical or physical? | physical (intensive) |
| Mass | the amount of matter in an object |
| is mass chemical or physical? | physical (intensive) |
| Luster | the way light interacts with the surface of a substance |
| is luster chemical or physical | physical (intensive) |
| pH | a measurement of how acidic or basic a substance is |
| is pH chemical or physical? | chemical |
| Volume | the amount of space that a substance occupies |
| is volume chemical or physical | physical (extensive) |
| Reactivity | the rate at which a chemical substance tends to undergo a chemical reaction |
| is reactivity chemical or physical? | chemical |
| ability to rust | the ability of a substance to react with oxygen and mixture to create a reddish flaky coating |
| is the ability to rust chemical or physical? | chemical |
| Flammability | the ability of a substance to burn or ignite, causing fire or combustion |
| Is flammability physical or chemical? | chemical |
| toxicity | the degree to which something is poisonous |
| is toxicity physical or chemical? | chemical |
| Example: Diamond(C) | Element |
| Example: Air | Mixture |
| Example: Krypton (K) | Element |
| Example: Water(H20) | Compound |
| Example:Popcorn | Mixture |
| Example:Wood | Mixture |
| Example:Bronze | Mixture |
| Example:Milk | Mixture |
| Example:Gasoline | Mixture |
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