element atomlarining boshqa elementlarning muayyan sondagi atomlarini biriktirib olish xususiyati

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element atomlarining boshqa elementlarning muayyan sondagi atomlarini biriktirib olish xususiyati ============== ekvivalent ============== # valentlik ================ elektrmanfiylik ============= elektronga moyillik +++++++++++++ ,,valentlik“ tushunchasi kimyo faniga qachon va kim tomonidan kiritilgan? ============================ berselius =============== # franklend ================ mendeleyev ============== dalton +++++++++++++++ o’z guruhiga mos valentlik(kichik) hosil qilmaydigan elementlar qatori? 1) azot 2) kislorod 3) ftor 4) temir 5) nikel 6) kobalt 7) geliy 8) argon 9) neon 10)mis 11) kumush 12) oltin 13) simob 14) talliy ============================== # 1,2,3,4,5,6 ========================== 1,2,3,4,5,6,10,11,12,13,14 ============================== 7,8,9 =============================== 10,11,12,13,14 +++++++++++++++++++++++++++++ qaysi valentlikni mn va s hosil qiladi, lekin cr hosil qila olmaydi. ========================== ii ============================= iii ======================= # iv ======================== vii +++++++++++++++++++++++++++++ qaysi valentliklarni fosfor ham, xrom ham namoyon qila olmaydi , lekin yod namoyon qiladi 1) v; 2) iii; 3) vi; 4) vii; 5) i =========================== # 4,5 =============================== 1,3 ============================== 2,4,5 =========================== 1,2,3 +++++++++++++++++++++++++++++++++ valentlik birligi sifatida nima qabul qilingan? =========================== vodorod atomining …

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+++++++++++++++++ kimyoviy elementdir - bu ... ? ============================== molekulalaming muayyan turi =========================== ionlaming muayyan turi =============================== #atomlaming muayyan turi ========================== moddalaming muayyan turi ++++++++++++++++++++++++++++++++++++ quyidagi moddalaming nechtasi tarkibida allotropik shakl ko‘rinishli element mavjud?l)ammiak; 2) vodorod sulfid; 3)malaxit; 4) oshtuzi; 5) ohaktosh; 6)kaliy bromid. ==================== #3 ======================= 4 ========================== 1 =========================== 2 ++++++++++++++++++++++++++++++ allotropiyaga oid fikrlarning to’g’rilarini aniqlang.1) galogenlarda allotropiya hodisasi kuzatiladi;2) xalkogenlarda allotropiya hodisasi kuzatiladi;3) ozon kislorodning allotropik ko’rinishi;4) fullerin fosforning allotropik ko’rinishi ============================= # 2, 3 ============================ 1, 2, 3, 4 ============================= 1, 2, 3 =============================== 2, 3, 4 ++++++++++++++++++++++++++++++++++ quyida qaysi biri uglerod elementi allotropik modifikatsiyasi emas? =========================== olmos ======================== grafit ======================= karbin =============================== # qurum +++++++++++++++++++++++++++++++++ is gazida uglerod atomining valentligi va oksidlanish darajasi nechiga teng. ================================== 2 va +2 ============================ 3 va +3 ========================== #3 va +2 ========================== +2 va 3 ++++++++++++++++++++++++++++++ vodorod molekulasi hosil bo’lishining termokimyoviy tenglamasi quyidagicha: h + h → h2 + 436 …

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rida bog’ uzunligi qanday o’zgaradi. ============================= kamayadi ============================ o’zgarmaydi ============================== kuchayadi ================================== #yodgacha ortadi keyin kamayadi +++++++++++++++++++++++++++++++ ion boglanishli moddalarni toping ============================= # nacl va na2so4 =============================== o2 va n2 ============================================ h2o va hf ============================== k2s va nah ++++++++++++++++++++++++++++++ qutubsiz kavalent bo’glanishli moddalar juftligini toping. ============================ hcl va nh3 ============================ # ph3 va o3 =========================================== bh3 va n2h4 =========================== h2 va hbr ++++++++++++++++++++++++++++++++++ gidroksoniy kationida qaysi atom elektrono donor vazifasini bajaradi. =============================== azot ================================ vodorod ================================ # kislorod ============================== uglerod +++++++++++++++++++++++++++++++++ 2 litr 2 molyar eritma tayyorlash uchun qancha mol kaliy gidroksid kerak? =============================== 1 ================================ 0,004 ============================= 3 =========================== # 4 +++++++++++++++++++++++++++++++++++ 20% li naoh eritmasining (p=l,2 g/ml) molyar kontsentratsiyasi qanchaga teng bo’ladi? ================================== 5 ============================= # 6 =============================== 7 ================================ 8 ++++++++++++++++++++++++++++++++++++ suvsiz sulfat kislota tayyorlash uchun 154 gr suvga qancha gr sulfat angidrid qo’shish kerak. ==================================== # 684,4 ============================= 34,65 ============================= 855,5 ========================== 640 ++++++++++++++++++++++++++++++++++ co2 gazi …

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=========== # 0,196 ================================ 1,96 ================================= 55,44 ++++++++++++++++++++++++++++++++++++++ ikkita murakkab, bitta oddiy modda berilgan javobni belgilang. ============================== fe, сu, s6 =============================== #co2, ch4, p4 =============================================== kh, o2, o3 ================================== p4, co, o3 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ brom atomining maksimal qo’zg’algan holati-da uning tashqi elektron qobig’idagi d-elektronlar sonini hisoblang. ====================== 10 ==================== 1 ======================= 2 =================== # 3 +++++++++++++++++++++++ elektron konfiguratsiyasi …5s24d2 bilan tugagan elementning yadro zaryadi qiymatini toping. ============================ # 40 ============================== 24 ============================== 22 ================================ 42 ++++++++++++++++++++++++++++++++ iv davr elementlaridan qaysilarining d-pog’onachasida toq elektronlar soni ko’proq? ============================== xrom ==================================== # xrom va marganes ================================== mis ================================= marganes va temir ++++++++++++++++++++++++++++++++++++ ni+3 ioni nechta 3d-elektronga ega? ============================= 8 ============================== 6 ============================= 5 =============================== # 7 +++++++++++++++++++++++++++++++++++ qaysi element atomi 3d-pog’onachada maksimal miqdorda bo’sh katakchalarga ega? ================================= # kalsiy =================== ==================== titan ================== =================== xrom =============================== vanadiy +++++++++++++++++++++++++++++++ orbital kvant 3 ga teng bo’lgan elektron qobiq-chadagi elektronlaning maksimal sonini ko’rsating. ============================== 18 ================================== 8 …

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+++++++++++++++++++++++ vodorod xloridning qanday miqdorida 3 mol xlor mavjud? =============================== 1 ===================================== # 3 ================================== 5 ============ ===================== 6 ++++++++++++++++++++++++++++++++++ sariq qon tuzi k4[fe(cn)6] ning molekulyar massasini toping. ============================ 156 ================================= # 368 ============================== 278 =============================== 468 ++++++++++++++++++++++++++ yer qobig’i massasining 47,2% kislorod va 8,87% aluminiydan iborat. undagi aluminiyning har bir atomiga kislorodning necha atomi to’g’ri keladi? ================================= 3 ============================= 12 ================================ # 9 ================================ 6 ++++++++++++++++++++++++++++++++++ modda miqdori 2 mol bo’lgan [ni(nh3)6]cl2 – geksaamminnikel(ii)-xloridning massasini (g) hisoblang. ================================ 46,4 ============================== 232 ================================ 696 ============ ====================== # 464 ++++++++++++++++++++++++++++++++++++++ oltingugurt va temir kukuni 8:14 og’irlik nisbatda bo’lsa, ularning mol nisbatlari qanday bo’ladi. ============================= 8:14 ======== ==================== 4:7 ========================== 2:1 ========================== # 1:1 +++++++++++++++++++++++++++++ quyidagi berilgan tuzlardan qaysi birlari gidrolizga uchramaydi? ================================ # kaliy nitrat, natriy xlorid ================================ temir (iii)-xlorid, mis (h)-sulfat ===================================== temir (iii)-atsetat, ammoniy karbonat ==================================== kaliy sulfid, natriy karbonat ++++++++++++++++++++++++++++++++++ qaysi tuzlar faqat kation bo‘yicha gidrolizga uchraydi? ================================== …

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element atomlarining boshqa elementlarning muayyan sondagi atomlarini biriktirib olish xususiyati ============== ekvivalent ============== # valentlik ================ elektrmanfiylik ============= elektronga moyillik +++++++++++++ ,,valentlik“ tushunchasi kimyo faniga qachon va kim tomonidan kiritilgan? ============================ berselius =============== # franklend ================ mendeleyev ============== dalton +++++++++++++++ o’z guruhiga mos valentlik(kichik) hosil qilmaydigan elementlar qatori? 1) azot 2) kislorod 3) ftor 4) temir 5) nikel 6) kobalt 7) geliy 8) argon 9) neon 10)mis 11) kumush 12) oltin 13) simob 14) talliy ============================== # 1,2,3,4,5,6 ========================== 1,2,3,4,5,6,10,11,12,13,14 ============================== 7,8,9 ======================...

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