
Rūgštys ir bazės
Authored by Emilija Zakaitė
Chemistry
9th Grade
Used 75+ times

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20 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kokių jonų bus druskos rūgšties tirpale? Pažymėkite visus teisingus atsakymo variantus.
H+
Cl-
NO3-
SO42-
Na+
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri formulė yra sieros rūgšties?
H2SO3
H2CO3
H2SO4
HNO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri formulė yra natrio hidroksido?
NaOH
NaCl
Ca(OH)2
Na2CO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri dalelė lemia tirpalo bazines savybes?
OH-
Na+
H+
Cl-
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kurio iš šių junginių vandeninis tirpalas yra bazinis?
Kalcio chlorido CaCl2(aq)
Vandenilio chlorido HCl(aq)
Natrio chlorido NaCl(aq)
Amoniako NH3(aq)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iš pateiktų tirpalo savybių atrinkite tą, kuri būdinga rūgštims.
Tirpalas slidus
Violetinis lakmusas pamėlynuoja
Violetinis lakmusas paraudonuoja
Tirpalo pH didesnis už 7
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Vyksta reakcija tarp Mg ir H2SO4 tirpalo. Kas šioje reakcijoje yra reduktorius? Prisiminkite OPERA taisyklę.
Magnio atomai
Magnio jonai
Vandenilio molekulė
Vandenilio jonai
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