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physical science > unit 5 > Flashcards

unit 5 Flashcards

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1
Q

why’s is oxidation? loss or gain

A

loss of electrons

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2
Q

what is reduction?

A

gain of electrons

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3
Q

what is exothermic

A

releasing energy

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4
Q

what is endothermic

A

absorbing energy

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5
Q

what is a reaction rate

A

the rate at which reactants change into products over time

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6
Q

what are the factors that affect reaction rates

A

temperature, surface area, concentration, stirring, catalysts

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7
Q

what is concentration

A

number of particles in a given volume

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8
Q

what are catalysts

A

substance that affects the reaction without being used up in the reaction speeds it up

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9
Q

what is the solute

A

salt

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10
Q

what is the solvent

A

water

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11
Q

what are the three ways substances can dissolve in water by

A

dissociation dispersion and ionization

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12
Q

what is dissociation

A

the process in which ionic compounds separates into ions as it dissolves

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13
Q

what is an ionic compound

A

neutral overall but made of ionic elements

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14
Q

what is dispersion

A

breaking into small pieces that spread throughout the water

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15
Q

physical properties of a solution

A

conductivity freezing point and boiling point

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16
Q

what is an acid

A

a compound that produces hydronium ions

17
Q

properties of acids

A

sour reactive with metals produce color change with indicators

18
Q

properties of bases

A

bitter taste slippery feel color changes on indicator

19
Q

what does the neutralization reaction between and acid and base for

A

salt and water

20
Q

what is salt

A

an ionic compound

21
Q

do acids lose or accept protons

A

lose donate

22
Q

do bases lose or accept protons

A

accept

23
Q

what are proton donors

A

acids

24
Q

what are proton acceptors

A

bases

physical science (3 decks)

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