kimyo test Atom qanday zarrachalardan tashkil topgan?

7-kimyo test

1)Atom qanday zarrachalardan tashkil topgan?

A)ion,kation,molekula B) anion,atom,zarracha S) proton,neytron,electron

2)Kimyoviy element nima?

a)molekulalar uyushmasi B)atomlarning muayyan turi S)elementar zarracha

3).Al₂(SO₄)₃ ning molekulyar massasi nechaga teng?

A)342g/mol B)365g/mol S) 450g/mol

4)Bir modda molekulalarini boshqa modda molekulalari orasida tarqalishiga nima deyiladi? A)allatropiya B)diffuziya S)reaksiya

5)Atom-molekulyar ta’limot nechanchi yil isbotlab berildi?

A) 1890y B)1870y S)1860y

6)Moddalar yozilgan qatorni ko’rsating?

A)qaychi,mix,koptok B) temir,oltin,mis S)Yer,Oy,Quyosh

7)Molekula nima?

A)o’zaro bog’langan atomlar guruhi B)proton,neytron,ionlar guruhi S)elektron,atomlar

8)Rux atomi tarkibidagi neytron sonini toping? A)65 B) 45 S)35

9)Fosfor atomining absalyut massasini toping?

A)93,56x10^-24kg B)51,77x10^-27kg S) 45,76x10^-23kg

10)Bitta atomning massasi nechaga teng? A)1,66x10^-27kg B)6,02x10^-23g S)3,1x10²³kg

11)Kimyoviy elementlarni lotin alifbosida belgilashni kim fanga kiritgan?

A) Lomonosov 1877y B)Berselius 1827y S) Avogadro 1877y

12)Jismlar yozilgan qatorni ko’rsating?

A)qaychi,koptok,mix B)suv,kislota,neft S)spirt,bo’yoq,uksus

13)Atom massani topish formulasi qanday? A)N=P+A B)A=P+N S) Z=A-N

14)Neytron sonini topish formulasi qanday? A)A=P+N B)P=A-N S)N+A-P

15Alyuminiyni proton soni nechaga teng? A) 13 B)27 S)14

I.1. Modda miqdori. (mol)

I. 1. 80 gr natriy gidroksid (NaOH) ni modda miqdor(mol)ni toping.

2. 10 gr vodarod (H2) ni modda miqdorini toping.

3. 740 gr kalsiy gidroksid (Ca(OH)2) ni molini hisoblab toping.

4. 8,5 gr natriy nitrat (NaNO3) ning modda miqdori (mol) ni hisoblang.

5. 15 gr kalsiy karbonat (CaCO3) ning modda miqdori (mol) ni hisoblang.

6. 16 gr sulfat angidrid (SO3) ning modda miqdori (mol) ni hisoblang.

7. 9,8 gr mis(II)-gidroksid (Cu(OH)2 ni modda miqdori (mol) ni hisoblang.

8. 3,9 gr benzol (C6H6) ning modda miqdorini (mol) hisoblang.

9. 490 gr ortofosfat (H3PO4) kislotaning modda miqdorini (mol) toping .

10. 49 gr sulfat kislota (H2SO4) ni modda miqdor (mol) ni toping.

Modda massasi(g)

II. 11. 0,5 mol o’yuvchi natriy (NaOH) ni massasini gr toping.

12. 3 mol natriy sulfat (Na2SO4) ni massasini gr toping

13. 0,1 mol ammoniy fosfat ( (NH4)3PO4) ning massasini gr hisoblang.

14. 0,25 mol kaliy gidroksid (KOH) ning massasini gr hisoblang

15. 3,5 mol mis kuporosi (CuSO4∙5H2O) ning massasini gr hisoblang.

16. 5 mol sulfat kislota (H2SO4) ning massasini gr hisoblang.

17. 4 mol sirka kislota (CH3COOH) necha gr keladi?

18. 6 mol anilin (C6H5NH2) necha gr keladi? J:558

19. 15 mol natriy peroksid (Na2O2) necha gr keladi?

20. 3,5 mol natriy fosfat (Na3PO4) tuzi necha gr keladi?

21. 1,75 mol kislorod (O2) necha gr keladi.

22. 3,3 mol so’ndirilmagan ohak (CaO) ning massasini gr toping.

Molekulyar masssa (g/mol)

III. 23. 5,2 gr nomalum modda 0,2 mol kelsa,nomalum modda molekulyar massasini toping.

24. 4,9 gr nomalum modda 0,05 mol kelsa,shu moddani Mr ni toping.

25. 39 gr nomalum modda 0,5 mol kelsa,shu moddani massasini toping.

26. nomalum moddaning 0,25 moli 14 gr kelsa,shu moddaning Mr ni toping.

27. 27,3 gr nomalum modda 0,35 mol bo’lsa,moddaning Mr ni toping.

28. 0,3 mol moddaning massasi 36 gr bo’lsa,shu moddaning molekulyar massasini

toping.

29. Berk idishga 14 gr yarim mol gaz berkitilgan. Shu idish ichidagi noma’lum gaznining

molekulyar massasini aniqlang.

30. 36 gr nomalum moddaning 0.45 molining molekulyar massasini toping.

31. Berk idishga 22 gr yarim mol gaz berkitilgan. Shu idish ichidagi noma’lum gazni

aniqlang.

32. 18,9 gr nomalum moddaning miqdori 0,3 mol bo’lsa,shu moddaning molekulyar massasini