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Science 8 > reactions vocab > Flashcards

reactions vocab Flashcards

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1
Q

process in which 1+ substances are changed into new ones

A

chemical reaction

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2
Q

chemical equation with some number of atoms of each element on both sides of the equation

A

balanced chemical equation

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3
Q

shorthand method used to describe chemical reactions using chemical formulas and other symbols

A

chemical equation

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4
Q

in chemical reaction, the substance that reacts

A

reactant

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5
Q

in chemical reaction, new substance(s) formed

A

product

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6
Q

insoluble compound thats formed in a solution during double displacement reaction

A

precipitate

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7
Q

SI unit for quantity equal to 6.022 x 10^23 units of substance

A

mole

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8
Q

mass in grams of one mole of substance

A

molar mass

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9
Q

number in chemical equation that represents number of units of each substance taking parts in chemical reaction

A

coefficient

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10
Q

loss of e- from atoms of substance taking part in chemical reactions

A

oxidation

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11
Q

gain of e- by atom of substance in a chemical reaction

A

reduction

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12
Q

chemical reaction in which 2+ substances combine to form a different substance

A

synthesis reaction

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13
Q

reaction that can proceed in both forward and reverse direction

A

reversible reaction

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14
Q

reaction in which 2 ionic compounds in solution are combined, can produce a precipitate, water, gas

A

double displacement reaction

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15
Q

chemical reaction in which 1 element replaces another element in a compound

A

single displacement reaction

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16
Q

type of chemical reaction that occurs when a substance reacts with oxygen to produce energy in form of heat and light

A

combustion reaction

17
Q

chemical reaction in which 1 substance breaks down into 2+ substances

A

decomposition reaction

18
Q

chemical reaction in which energy is primarily given off in form of thermal energy

A

exergonic

19
Q

chemical reaction that requires input energy in form of light, thermal energy, or electricity in order to proceed

A

endergonic

20
Q

chemical reaction that requires thermal energy in order to proceed

A

endothermic reaction

21
Q

rate at which reactants change into products in chemical reactions

A

reaction rate

22
Q

explains why certain factors affect reaction rates, states particles must collide in order to react

A

collision model

23
Q

state in which forward and reverse reactions or processes occur at equal rates

A

equilibrium

24
Q

substance that slows down chemical reactions or prevents it from occurring by combining with reactant

A

inhibitor

25
Q

substance that speeds up chemical reactions without being permantly changed itself

A

catalyst

Science 8 (8 decks)

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