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Test Iz Kemije > Kemija > Flashcards

Kemija Flashcards

1
Q

Biogeni elementi

A

Svi elemnti koji čine živa bića

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2
Q

Elementi 1. skupine

A

Alkalijski elementi(1 valencija)

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3
Q

Elementi 2. skupine

A

zemnoalkalijski elementi(2 valencije)

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4
Q

Elementi od 3.-11. skupine

A

Prijelazni elementi

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5
Q

Svojstva metala

A

Visoko taliste i vreliste, velika gustoca, sjaj, provode struju i toplinu, neprozirni…

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6
Q

Elementi 18. skupine

A

Plemeniti elementi

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7
Q

Elementi 17. skupine

A

Halogeni elementi

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8
Q

Elementi 16. skupine

A

Halkogeni elementi

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9
Q

Svojstva nemetala

A

Niska tališta i vrelišta, ne provode struju i toplinu, mala gustoca

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10
Q

Kationi

A

Pozitivno nabijeni ioni

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11
Q

Anioni

A

Negativno nabijeni ioni

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12
Q

Tko prima elektrone?

A

Nemetali

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13
Q

Tko otpušta elektrone

A

Metali

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14
Q

Empirijska formula

A

Formula koja kvalitativno i kvantitativno predstavlja tvar

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15
Q

Svojstva sumpora(S8)

A

Gori plavom bojom, ne topi se u vodi, žute boje

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16
Q

Svojstva sumporova(IV) oksida(SO2)

A

Otrovan plin, bezbojan, oštar miris,

17
Q

Sumporna kiselina

A

H2SO4

18
Q

H2SO4

A

Sumporna kiselina

19
Q

Sumporasta kiselina

A

H2SO3

20
Q

H2SO3

A

Sumporasta kiselina

21
Q

Relativna atomska masa(Ar)

A

Ar(X)=ma(X)
———
Da

Nema mjernu jedinicu

22
Q

Ma(X)

A

Ar(X)•Da

Iskazuje se u Da, kg, g

23
Q

Masa molekule(mf)

A

mf(xy)=Mr(XY)•Da

Iskazuje se u Da, kg, g

24
Q

Relativna molekulska masa(Mr)

A

Mr(XY)=Ar(X)+Ar(Y)

Nema mjernu jedinicu

25
Q

Molekule u KSE

A

H2,N2,O2,F2,Br2,I2,Cl2,O3,P4,S8

26
Q

Alotropske modifikacije

A

Različite elementarne tvari istog kemijskog elementa

27
Q

Formulska jedinka

A

Najmanji omjer broja aniona i kationa

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