November 2018 2 14 Report

Oblicz '' X '' :

1. COx = 28 u

2. Nax PO4 = 164 u

3. Ustal wzór jeśli cząsteczka zawiera :

- 2 atomy pierwiastka o łącznej masie 46 u ,

- 1 atom o masie 32 u ,

- 4 atomy o masie 64 u .

'' u '' - unit

Z góry dzięki ! Daje naaaaaaaaaaaaaj ! : )


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