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rozwiaz chemograf ; ))
wzory i nazwy substancji
A-
B-
C-
D-
reakcje
1.
2.
3.
4.
5.
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1. 2Na + Br2---->2NaBr
2. 4Na + O2---->2Na2O
3. 2Na + 2H2O---->2NaOH + H2
4. Na2O + H2O---->2NaOH
5. 2H2 + O2---->2H2O
A...O2....tlen
B...NaOH....wodorotlenek sodu
C...H2.....wodór
D...NaBr...bromek sodu
wzory i nazwy substancji
A-tlen [O]
B-wodorotlenek sodu [NaOH]
C-wodór [H]
D-bromek sodu [NaBr]
reakcje
1. 2Na+Br2-->2NaBr
2. 4Na+O2-->2Na2O
3. 2Na+2H2O-->2NaOH+H2
4. Na2O+H2O-->2NaOH
5. 2H2+O2-->2H2O