CH-opakování
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Kateřina Šochová
Used 1+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Co je to oxidace?
zvýšení oxidačního čísla příslušného prvku
snížení oxidačního čísla příslušného prvku
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Co je to redukce?
zvýšení oxidačního čísla příslušného prvku
snížení oxidačního čísla příslušného prvku
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Vyčísli správně rovnici.
Al + NaOH + H2O → Na[Al(OH)4] + H2
2 Al + 2 NaOH + 6 H2O → 2 Na[Al(OH)4] + 3 H2
2 Al + 2 NaOH + H2O → 2 Na[Al(OH)4] + 3 H2
Al + 2 NaOH + 6 H2O → 2 Na[Al(OH)4] + 3 H2
2 Al + 2 NaOH + 6 H2O → 2 Na[Al(OH)4] + H2
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Název vzorečku:
H₄OH
NH₄OH
NH₄O
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Co je to koncentrace?
tepelná kapacita
zabývá se teplem
vyjadřuje obsah sledované látky v celkovém množství roztoku, směsi nebo rozpouštědla
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Termochemie se zabývá studiem tepelného zabarvení chemických reakcí.
Ano
Ne
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Periodický zákon vyjadřuje vlastnosti prvků jsou periodicky závislé na svých relativních atomových hmotnostech.
Ano
Ne
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