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nasty1981
@nasty1981
December 2021
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помогите с ответом 2!!!Заранее огромное спасибо
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Typitsa13yana
1)Mr(K3PO4)= 3Ar(K)+Ar(P)+4Ar(O)= 3*39+31+4*16= 212
2)Mr(MnSO3)= Ar(Mn)+Ar(S)+3Ar(O)= 55+32+3*16= 135
3)Mr(Na3PO4)= 69+31+64= 164
4)Mr(Cr(NO3)2)= 52+28+96=176
5)Mr(BaCO3)= 137+12+48= 197
6)Mr(Mn(NO3)2)= 55+28+96=179
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Answers & Comments
2)Mr(MnSO3)= Ar(Mn)+Ar(S)+3Ar(O)= 55+32+3*16= 135
3)Mr(Na3PO4)= 69+31+64= 164
4)Mr(Cr(NO3)2)= 52+28+96=176
5)Mr(BaCO3)= 137+12+48= 197
6)Mr(Mn(NO3)2)= 55+28+96=179