Kimyoning asosiy tushuncha va qonunlari. I. Kimyoning asosiy tushunchalari. Atom

Absolyut massa
1. Oltingugurtning absolyut massasini (g) toping?

A) 53,31·10^-23 B) 5,31·10^-23 C) 5,31·10^-26 D) 32

2. 200 dona temir atomi massasini (kg) hisoblang?

A) 1,86·10^-23 B) 1,86·10^-26 C) 9,3·10^-23 D) 9,3·10^-26

3. Kaliyning bitta atomining massasini (kg) hisoblang?

A) 6,48·10^-23 B) 0,089 C) 6,48·10^-26 D) 3,912·10^-24

4. Kalsiyning absolyut massasini (kg) hisoblang?

A) 6,64·10^-26 B) 6,64·10^-23 C) 6,02·10^-23 D) 39,7·10^-26

5. Bitta atomining massasi 3,82·10^-23 g bo’lgan elementni ko’rsating?

A) Mg B) Na C) Fe D) S

6. Bitta atomining massasi 8,638·10^-26 kg bo’lgan elementni ko’rsating?

A) Fe B) Cr C) Cu D) S

7. 301 ta atomning massasi 2·10^-20 g bo’lgan elementni ko’rsating?

A) Fe B) Mg C) Ca D) Cr

8. Magniy necha atomi 9,96·10^-25 kg keladi?

A) 10 B) 25 C) 50 D) 100

9. Aluminiy necha atomi 5,4·10^-20 g keladi?

A) 1204 B) 1136 C) 1308 D) 1500

10. 1-element atomining absolyut massasi 2-elementnikidan 6,6445·10^-24 g ga kam. Agar 1-element natriy bo’lsa, ikkinchi elementni aniqlang.

A) Mg B) Al C) Si D) P

11. 2 element absolyut massalari o’rtasidagi farq1,3289·10^-23 g bo’lsa, bu elementlarni ko’rsating.

A) Ne, Si B) Mg, Al C) K, Ca D) Fe, Zn

12. 2 element absolyut massalari o’rtasidagi farq

1,66·10^-23 g bo’lsa, bu elementlarni ko’rsating.

A) Mg, Ca B) Fe, Al C) Mn, Zn D) Cu, Zn

13. Agar nisbiy atom massasi birligi sifatida C absolyut massasining1/12 qismi emas, 1/3 qismi olinsa, NAM qiymati qanday o’zgaradi?

A)4 marta kamayadi B)4marta ortadi

C) 8 marta ortadi. D)8 marta kamayadi

14. Agar nisbiy atom massasi birligi sifatida C absolyut massasining1/12 qismi emas, kislorod absolyut massasining 1/16 qismi olinsa, NAM qiymati qanday o’zgaradi?

A) 4 marta kamayadi B) 3 marta ortadi

C) o’zgarmaydi D) 1,333 marta kamayadi

15. Agar nisbiy atom massasi birligi sifatida C absolyut massasining1/12 qismi emas, 1/6 qismi olinsa, kalsiyning NAM qiymati necha bo’ladi?

A) 80 B) 40 C) 20 D) 10

16. Agar nisbiy atom massasi birligi sifatida

C absolyut massasining1/12 qismi emas 1/4 qismi olinsa, Al NAM necha bo’ladi?

A)3 B)143 C) 81 D) 9

17. Agar nisbiy atom massasi birligi sifatida C absolyut massasining1/12 qismi emas, kislorod absolyut massasining 1/4 qismi olinsa, magninyning NAM qiymati necha bo’ladi?

A) 6 B) 12 C) 24 D) 48

18. Agar nisbiy atom massasi birligi sifatida C absolyut massasining1/12 qismi emas, geliy absolyut massasining 1/2 qismi olinsa, NAM qiymati qanday o’zgaradi?

A) 4 marta kamayadi B) 4 marta ortadi

C) 2 marta ortadi D) 2 marta kamayadi

19. Agar nisbiy atom massasi birligi sifatida C absolyut massasining1/12 qismi emas, 1/6 qismi olinsa, haqiqiy atom massa qiymati qanday o’zgaradi?

A) 2 marta kamayadi B) 2 marta ortadi

C) o’zgarmaydi D) 6 marta ortadi

20. 301 dona aluminiy atomi massasiga teng bo’lgan temir atomlari sonini ko’rsating.

A) 602 B) 145 C) 236 D) 96

21. 1204 dona magniy atomi massasiga teng bo’lgan kalsiy atomlari sonini ko’rsating.

A) 602 B) 301 C) 722 D) 831

22. 1806 ta atomning massasi 1,68·10^-19 g bo’lgan elementni ko’rsating?

A) S B) Cu C) Ca D) Fe

23. Temir atomining absolyut massasining noma’lum element atomi 5 donasining massasiga nisbati 0,28 ga teng. Noma’lum elementni aniqlang.

A) Na B) Ca C) Cu D) Al

24. Magniy atominig 2 donasining massasining noma’lum element atomi 10 donasining massasiga nisbati 0,1 bo’lsa, noma’lum elementni ko’rsating.

A) Fe B) Ca C) Ti D) Cu