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7 questions
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- 1. Multiple-choice10 seconds1 pt
Ag
srebro
złoto
rtęć
miedź
- 2. Multiple-choice10 seconds1 pt
Brom
B
Ba
Br
Ru
- 3. Multiple-choice10 seconds1 pt
Cynk
Cl
Cu
Kr
Zn
- 4. Multiple-choice30 seconds1 pt
Tlen
O
N
C
T
- 5. Multiple-choice30 seconds1 pt
Sód
N
Na
Mg
S
- 6. Multiple-choice30 seconds1 pt
Złoto
Zn
Zr
S
Au
- 7. Multiple-choice30 seconds1 pt
Siarka
A
S
Sn
Sr
