Cheminių lygčių sudarymas ir lyginimas
Authored by Elvyra Ajauskaite
Chemistry
2nd Grade
Used 5+ times
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10 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 5 pts
NaOH + (a) =NaCl+H2O
Įrašykite reikaliną junginį
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Na2O+CO2=
Reakcijos eigoje gausime
NaC
Na2CO3
NaOH
NaCO3
3.
FILL IN THE BLANKS QUESTION
1 min • 5 pts
H20+S02=
Reakcijos metu susidaro
(a)
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
2HCl+Zn=
Reakcijos metu susidaro
ZnCl2+H2O
ZnCl+H
ZnCl+H2
ZnCl2+H2
5.
OPEN ENDED QUESTION
3 mins • 5 pts
H2SO3 tai ..........
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6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Medžiagos sudarytos iš metalo ir grupės OH- vadinamos
Me(OH)n
Druskomis
Oksidais
Rūgštimis
Hidroksidais
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Rūgštys tai
NaCl, H2O
Mg(OH)2, Na2O
H2S, HNO3
N2O3. KCl
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