1. Atom-molekulyar ta’limot. Kimyoning dastlabki tushunchalari. Molekula bu…

3. Quyidagi qaysi modda uchun molekula va atom tushunchalari bir xil bo’ladi? A) azot B) argon C) xlor D) brom

4. Atom massasi 6,68∙10^-26 kg bo’lgan elementni ko’rsating. A) temir B) kalsiy C) magniy D) uglerod

5. Natriy atomining massasi necha kg ga teng? A)38,18∙10^-27 B)1,6∙10^-27 C) 2,0∙10^-24 D) 38,18∙10^-24

6. Bitta natriy atomining massasi … gr. A) 23∙10^-24 B) 2,66∙10^-27 C) 2,0∙10^-24 D) 38,18∙10^-24

7. Bitta azot molekulasining massasini (g) hisoblang. A) 2,33∙10^-23 B) 4,65∙10^-23 C) 28 D) 14

8. 5 ta marganes atomining absolyut massasi necha gramm? A) 4,6∙10^-22 B) 5,5∙10^-23 C) 7,9∙10^-23 D) 9,13∙10^-23

9. Temir atomining absolyut massasini (kg) toping. A) 33,73∙10^-27 B) 56 C) 9,3∙10^-26 D) 28

10. Bitta kislorod molekulasining massasini (gr) hisoblang. A) 5,3∙10^-23 B) 2,6∙10^-23 C) 32 D) 6,02∙10^-23

11. 1,5 ta alyuminiy atomining massasini (g) hisoblang. A) 6,73∙10^-23 B) 27 C) 40,5 D) 2,7

12. 1 mol azotda 6,02∙10²³ ta molekula bo’ladi. Azot atomining massasini (g) hisoblang. A) 2,32∙10^-23 B) 6,02∙10²³ C) 28 D) 4,65∙10^-23

13. 200 ta kislorod atomining massasi necha kg bo’ladi? A) 1,66∙10^-24 B) 6,61∙10^-22 C) 5,31∙10^-24 D) 2,65∙10^-23

14. Xlor molekulasining massasini (g) toping. A) 35,5 B) 107,5 C) 5,9∙10^-23 D) 11,8∙10^-23

15. Bir dona xrom atomining massasi necha kilogramm bo’ladi? A) 6,38∙10^-25 B) 6,83∙10^-27 C) 8,63∙10^-26 D) 8,36∙10^-26

16. 8 ta fransiy atomining massasini (g) hisoblang. A) 2,78∙10^-21 B) 3,32∙10^-24 C) 2,96∙10^-21 D) 4,82∙10^-23

17. Ming dona vodorod molekulasining massasi necha kilogramm bo’ladi? A) 1,67∙10^-25 B) 3,32∙10^-24 C) 4,32∙10^-27 D) 3,23∙10^-23

18. Soni 150 ta bo’lgan azot atomlari massasini (gr) hisoblang. A) 1,39∙10^-22 B) 1,71∙10^-21 C) 23,24∙10^-24 D) 3,5∙10^-21

19. Xona temperaturasida S_x ning bitta molekulasi massasi 4,26∙10^-22 g ga teng. Agar oltingugurt atomining massasi 5,32∙10^-23 g bo’lsa, “x” ning qiymatini toping. A)12 B) 10 C) 8 D) 6

20. Agar nisbiy atom massa qiymatini uglerod-12 ning 1/12 qismi emas 1/3 qismi olinsa, bir mol modda massasi qanchaga o’zgaradi? A) 3 marta ortadi B) o’zgarmaydi C) 4 marta ortadi D) 2marta ortadi