Odpowiedzi

2010-03-23T14:04:29+01:00
MCO2=mC + 2mO=12u+2*16u=12u+32u=44u
mNH3=mN+3mH=14u+3*1u=14u+3u=17u
mH2S=2mH+mS=2*1u+32u=2u+32u=34u
mNa2SO4=2mNa+mS+4mO=2*23u+32u+4*16u=46u+32u+64u=142u
mMg(OH)2=mMg+2mO+2mH=24u+2*16u+2*1u=24u+32u+2u=58u
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