October 2018 1 7 Report

1. oblicz wartościowość i narysuj wzory strukturalne .

CaO

CH4

NH3

Rb2O

H2S

Al2O3

2. ustal wzory pierwiastków :

tlenek miedzi (III)

TLENEK CYNY (IV)

fosforan potasu

siarczek sodu

siarczan sodu

azotan magnezu


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