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Chem Ch1 Sahmedxo
Question | Answer |
---|---|
The study of matter and the changes matter undergoes | Chemistry |
Anything that occupies space and has mass | Matter |
Rigid shape, maintains volume, not compressible, no flow | Solid |
Assumes containers shape, maintains volume, not compressible, has flow | Liquid |
Assumes containers shape and volume, is compressible, and has flow | Gas |
A state of matter that has total disorder, much empty space, particles have complete freedom of motion and are far apart | Gas |
A state of matter that has disorder, particles or clusters of particles are free to move relative to each other and are close together | Liquid |
A state of matter that has ordered arrangement, particles are in fixed positions and are close together | Crystalline Solid |
Contain only one material with a fixed composition | Pure Substance |
Two or more elements bonded together | Compound |
This type of pure substance is made up of one type of atom and can be combined to make compounds | Element |
This type of pure substance is made up of one type or molecule or unit and the units contain two or more different kinds of atoms | Compound |
Consists of two or more pure substances mixed together | Mixture |
A mixture made of multiple substances whose presence can be seen and the portions of its sample have different compositions and properties | Homogeneous |
A mixture made of multiple substances, but appears to be one substance, and all portions of an individual sample have the same composition and properties | Heterogeneous |
Bronze | Solution(Solid)/Homogeneous Mixture/Alloy Mixture/ |
Pepperoni Pizza | Heterogeneous Mixture |
Maple Syrup | Solution |
Steel Pipe | Solution |
Carbon Monoxide | Pure Substance/Compound |
Arsenic | Pure Substance/Element |
Vegetable Oil | Solution/Homogeneous Mixture |
Properties that can be observed without changing a substance into another substance | Physical Properties |
Properties that can only be observed when a substance is changed into another substance | Chemical Properties |
Changes that alter the state or appearance of the matter without altering the composition | Physical Changes |
Changes that alter the composition of the matter (Atoms are rearranges, old bonds break and new bonds form) | Chemical Changes |
What type of change in matter is boiling water? | Physical |
What type of change in matter is rusting iron? | Chemical |
What are some common physical changes? | State (Phase) Changes: Boiling/Condensing Melting/Freezing Subliming As well as Dissolving |
What are some common chemical changes? | Rusting Burning Dyes fading or changing color |
Chromatography | Separate by differences in solubility in a solvent |
Filtration | Separate by state |
Distillation | Separate components by boiling point |
SI base unit for Length | Meter |
SI base unit for Mass | Kilogram |
SI base unit for Time | Second |
SI base unit for Temperature | Kelvin |
What is the freezing and boiling points of water on the Kelvin Scale | 273K/373K |
What is the freezing and boiling points of water on the Celsius Scale | 0*C/100*C |
SI base unit for Length | Meter |
SI base unit for Mass | Kilogram |
SI base unit for Time | Second |
SI base unit for Temperature | Kelvin |
What is the freezing and boiling points of water on the Kelvin Scale | 273K/373K |
What is the freezing and boiling points of water on the Celsius Scale | 0*C/100*C |
SI prefix multiplier for Kilo | 10^3 |
SI prefix multiplier for Centi | 10^-2 |
SI prefix multiplier for Milli | 10^-3 |
A measure of quantity of matter in an object | Mass |
A measure of the pull of gravity on an object | Weight |
The amount of space a object occupies | Volume |
Ratio of mass of an object to its volume Mass/Volume | Density |
The proximity of a measurement to the true value of a quantity | Accuracy |
The proximity of several measurements to each other | Precision |
How many cm does 1in= | 2.54 |