Term
Law of cconservation
a) State what it is
b) Give an everyday eexample
c) Give a chemical reaction that illustrates it |
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Definition
a) The total mass remains constant during a chemical change (chemical reaction)
b) burning wood
c) When mercury mixes with oxyogen it creates mercury oxide, and when you heat mercury oxide it becomes mercury and oxygen |
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Term
Solids liquids and gases
a) describe the differences between the states of matters
b) give examples of each state |
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Definition
a) The difference is in rigity and compresibility, a gas is is easily compressible, a liquid is fluid that is not easily compressible, and solids are rigidity
b) Gas- Steam
Liquid- Water
Solid- Ice |
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Term
Properties Of Matter
a) Physical Property: Define it and give three examples |
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Definition
a) A characteristic that can be observed for a material without changing its chemical identity
color, shape, boiling point |
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Term
Properties Of Matter
b) Chemical Property: Define it and give three examples |
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Definition
b) It is a characteritic of a material involving chemical change
dissolvibility, flammibility, and reactivity |
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Term
Properties Of Matter
c) Physical Change: Two examples |
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Definition
c) cereal going soggy, grass being mowed |
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Term
Properties Of Matter
d) Chemical Change: Two Examples |
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Definition
d) wood burning, fireworks explodeing |
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Term
Substances
a) Elements: Define and 3 Examples |
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Definition
a) A substance that cannot be decomposed by any chemical reaction into a simpler substance
Mercury, iodine, arsenic |
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Term
Substances:
b) Compoumds: Define and 3 Examples |
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Definition
b) A substance composed of two or more elements chemically combined
Sodium-chloride, Carbon Dioxide, Water |
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Term
Substances
c) Mixtures: Define and 3 Examples and Difference between Heterogeneous and Homogeneous mixtures |
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Definition
c) Material that can be separated by physical means into two or more substances
Sodium Chloride, Pizza, Salsa
A heterogeneous mixture has distinct physical parts, and homogeneous is all mixed together |
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Term
Intense vs. Extensive Properties
a) Intensive Properties- Define and give 2 examples |
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Definition
a) System does not depend on the system size or amount
malleability, elasticity |
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Term
Intense vs. Extensive Properties
b) Extensive Property- Define and Give 2 Examples |
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Definition
b) It is directly porpotional to the amount of material present
volume, heat capicity |
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Term
Chromatogrophy
a) What is it |
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Definition
a) A collective term for separating mixtures |
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Term
Chromatogrophy
b) Briefly descrive 3 different types |
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Definition
b) Gas Chromatogrophy- a separation technique where gas is the mobile phase
Liquid Chomatogrophy- a separation technique where the mobile phase is liquid
Fast Protein Liquid Chromatogrophy- several chromatogrophy techniques used to purify proteins |
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Term
Chromatogrophy
c) Apply to lab situation |
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Definition
c) When tyring to identify the or purify the original components of a mixture |
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