Formule chimice
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard

GeorgetaLouisa Melinte
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Corectează greșeala strecurată în scrierea formulelor:
CaCl2
Na2OH
HCl
AlBr3
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
K2SO4 este
acid
bază
sare
oxid
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Vitriolul are formula chimică:
H2SO4
NaCl
HNO3
CaO
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Denumirea populară a NH4Cl este:
var stins
var nestins
țipirig
sodă caustică
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Când oxigenul se combină cu un metal din grupa I A (M) formula combinației formate este:
MO2
M2O3
M2O
M3O2
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Denumirea populară a CaCO3 este:
marmură
apă tare
pucioasă
pirită
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ba(OH)2 este
acid
oxid
sare
bază
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