Legaturi chimice/starea gazoasa

Legaturi chimice/starea gazoasa

19 Qs

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Legaturi chimice/starea gazoasa

Legaturi chimice/starea gazoasa

Assessment

Quiz

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Easy

Created by

ohreac ileana

Used 1+ times

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19 questions

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1.

OPEN ENDED QUESTION

30 sec • Ungraded

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2.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

1. Legatura ionica
se formeaza intre doua nemetale
este o legatura fizica
se formeaza intre un metal si un nemetal sau o grupare nemetalica, prin transfer de electroni
se formeaza prin punere in comun de electroni intre atomii a doua nemetale cu electronegativitati apropiate

3.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

2. Compusul CH4
este un metal
este un compus ionic
este o baza
este un oxid
este un compus covalent

4.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

3. legatura covalenta
se formeaza intre doua metale prin punere in comun de electroni
se formeaza intre doua nemetale prin punere in comun de electroni
se formeaza prin transfer de electroni de la doi atomi diferiti
implica ioni pozitivi (cationi) si ioni negativi (anioni)

5.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

4. care din urmatoarele variante contine doar compusi ionici
MgCl2, Al2O3, NaCl, CaCO3
CCl4, NaCl, CaCl2, Fe2O3, H2O
H2O, HCl, CH4, H2SO4, C
O2, C2, N2, Fe, NaCl, MnO2

6.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

5. Legatura de hidrogen
este o legatura chimica
este de 10 ori mai puternica decat legatura ionica
este de 10 ori mai slaba decat legatura covalenta
se stabileste intre atomii gazelor rare

7.

MULTIPLE SELECT QUESTION

30 sec • Ungraded

6.Intre moleculele de apa se stabilesc legaturi de hidrogen care explica anumite proprietati fizice ale apei
Adevarat
Fals

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