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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 |