Karbonatai
Authored by Reda Naikauskienė
Chemistry
10th Grade
Used 23+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kokiu reagentu atpažinsime kalcio karbonatą?
natrio šarmu
sieros rūgįtimi
kalio chloridu
vario sulfatu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri yra geriamosios sodos formulė?
CaCO3
Na2CO3
NaHCO3
K2CO3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arbatinuko nuoviros sudarytos iš CaCO3 ir MgCO3 .Jas galima pašalinti veikiant:
valgomosios druskos NaCl tirpalu
natrio šarmo NaOH tirpalu
acto rūgšties CH3COOH tirpalu
sodos Na2CO3 tirpalu
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuri formulė yra potašo?
CaCO3
Li2CO3
K2CO3
Na2CO3
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Kurių medžiagų sudedamoji dalis yra kalcio karbonatas ?
( galimi du variantai)
kreidos
potašo
kalcinuotos sodos
klinčių
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Kurie du komponentai naudojami stiklo gamyboje?
NaHCO3
K2CO3
Na2CO3
CaCO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kaip vadinami šie atvirkštiniai varvekliai?
stalaktitai
stalagmitai
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