
joplop
Authored by Renáta Pernikářová
Chemistry
10th Grade
Used 2+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2O2 + 2HI → I2 + 2H2O V uvedené rovnici je peroxid vodíku:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Teplota tání a varu vody – základní body ............ stupnice, přechod do pevného stavu – nárůst objemu asi o ........%, ........... hustota než kapalná voda, molekula: ............, vazby polární, molekuly ......... dipólový moment (kladnou a zápornou část molekuly...).
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Voda má největší hustotu při teplotě:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Označ lživé tvrzení o vodíku:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jak NEzíská vodík stabilní elektronovou konfiguraci ?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pokud vyrábíme vodík pomocí elektrolýzy, vodík vzniká na:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proč jímáme vodík do nádoby či zkumavky otočené dnem vzhůru?
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