
Pololetní kvíz
Authored by Tereza Procházková
Science
9th - 12th Grade
Used 1+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
O Jakou chemickou vazbu z hlediska násobnosti se jedná v molekule NaCl
Vazba jednoduchá
Vazba polární
Vazba dvojná
Vazba dvojná
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
O jakou chemickou vazbu z hlediska rozdílu elektronegativit se jedná v molekule NaCl
Vazba jednoduchá
Vazba násobná
Vazba kovalentní
Vazba iontová
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Jak dělíme chemické reakce z hlediska termodynamiky?
Endotermní a exotermní
Endotermické a exotermické
Reakce, které teplo uvolňují a reakce, kterým musíme teplo dodat
Endotermní a externí
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Vypočti pH kyseliny sírové o koncentraci 0,05mol/dm3. (uveď pouze číslo)
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Která částice z uvedené dvojice bude větší: H+nebo H-
H+
H-
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Která částice z uvedené dvojice bude větší.
Pb2+
Pb4+
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Vypočti pH hydroxidu vápenatého o koncentraci 0,0005 mol/l.(uveď pouze číslo)
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