chem notes 9-19 Flashcards by Elias Vandreason

Q

Energy is

A

the ability to do work

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Q

thermic/thermal =

A

heat

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Q

exothermic =

A

heat leaving system

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Q

heat leaving system =

A

exothermic

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Q

endothermic

A

heat entering system

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Q

heat entering the system =

A

endothermic

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Q

entropy =

A

disorder

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Q

disorder =

A

entropy

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Q

things tend to go to a (higher or lower) entropy

A

higher

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Q

enthalpy =

A

heat content/amount of heat

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Q

things go to a (higher or lower) enthalpy

A

lower

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Q

heat content/amount of heat =

A

enthalpy

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Q

law of conservation of matter

A

matter cannot be created or destroyed

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Q

law of conservation of energy

A

energy cannot be created or destroyed

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Q

law of conservation of charge

A

charge cannot be created or destroyed

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Q

2 types of matter

A

substance + mixture

Q

Aqueous (aq)

A

in water

Q

substance is

A

pure

Q

substance classes

A

elements + compounds

Q

elements =

A

atoms

Q

mixture =

A

two or more things mixed together

Q

compound

A

2+ atoms bonded together

Q

two or more atoms bonded together

A

compound

Q

how can mixtures be seperated

A

physical means

Q

elements can’t be broken down by

A

chemical means

Q

compounds can be broken down by

A

chemical means

Q

what can be broken down by chemical means

A

compounds

Q

homogeneous =

A

consistent throughout

Q

heterogeneous =

A

not consistent throughout

Q

consistent throughout

A

homogeneous

Q

not consistent throughout

A

heterogeneous