
Rūgštys ir bazės
Authored by Rasa Kucinskiene
Chemistry
1st Grade
Used 164+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri formulė yra sieros rūgšties?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kurio šių junginių vandeninis tirpalas yra bazinis?
kalcio chlorido
vandenilio chlorido
natrio chlorido
magnio hidroksido
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri formulė yra natrio hidroksido?
Na2CO3
Ca(OH)2
NaOH
NaCl
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri dalelė lemia tirpalo rūgštines savybes?
OH-
Cl-
H+
Na+
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kuriuo ženklu būtų pažymėta rūgštis?
a ir b
c
f
d
e
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kaip reikia skiesti koncentruotą sieros rūgštį?
Į indą su vandeniu pamažu pilti koncentruotą rūgštį.
Į koncentruotą rūgštį pilti vandenį.
Į indą su vandeniu iškart supilti visą koncentruotą rūgštį.
Nesvarbu, kaip pilti ir maišyti.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Natrio hidroksido masės dalis tirpale 0,5. Apskaičiuokite, kiek gramų NaOH yra 200 g tirpalo.
10
100
2
1
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