General Chemistry Flashcards Quizlet PDF

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7/3/2021

General Chemistry Flashcards | Quizlet Chemistry

General Chemistry Terms in this set (21) Density

ratio of mass of a substance to its volume

atoms or molecules arrange in geometric patterns with long-range, repeating Crystalline

order Ex - Salt and Diamonds

atoms or molecules do not have long-range order Amorphous Ex - Glass, Rubber, and Plastic

Specific Heat Capacity

quantity if heat required to change the temperature of 1g of the substance by 1°C

intramolecular bonds

the bonds between atoms within a molecule (stronger)

Intermolecular bonds

the bonds between molecules (weaker)

pure substance

element

compound

homogeneous mixture

composed of 1 type of atom, or molecule

matter of one type of atom has elemental composition

material formed of two or more elements in definite proportions. Can be decomposed to elements and simpler components

composition uniform throughout the matrix

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heterogeneous mixture

composition varies throughout the matrix

physical properties

observed without changes in chemical composition

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chemical properties

Law of Conservation of Mass

Law of Conservation of Energy

energy

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observed with changes in chemical composition

in a chemical reaction, matter is neither created nor destroyed

energy is neither created nor destroyed

the capacity to do work

exothermic

chemical reactions that release energy

endothermic

chemical reactions that absorb energy

all molecular motion stops absolute zero -273.15° = 0K

specific heat capacity

heat capacity

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Heat capacity in units J/g°C, represented as C

amount of thermal energy (J) required to change a specified mass of a given material by 1°C

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