4. Azotning massasi 14 va 15 bo’lgan izotoplari hamda vodorodning 3 xil izotopi yordamida hosil qilish mumkin bo’lgan ammiak molekulalarining nechtasining molyar massalari 19 va 21 bo’lishini toping.
A) 3+3 B) 3+4 C) 2+3 D) 4+5
𝐀𝐥𝐟𝐚 𝐊𝐢𝐦𝐲𝐨
A) 3+3 B) 3+4 C) 2+3 D) 4+5
𝐀𝐥𝐟𝐚 𝐊𝐢𝐦𝐲𝐨