TRY OUT UN 1
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
teguh santoso
Used 2+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
konsentrasi HCl, luas permukaan logam Mg, laju reaksi
konsentrasi HCl, laju reaksi, luas permukaan logam Mg
luas permukaan logam Mg, konsentrasi HCl, laju reaksi
laju reaksi, konsentrasi HCl, luas permukaan logam Mg
laju reaksi, luas permukaan logam Mg, konsentrasi HCl
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Unsur A : golongan II A , periode 2 , notasi unsur 12A24
Unsur A : golongan II A , periode 2 , notasi unsur 12A24
Unsur B : golongan VIII A , periode 3 , notasi unsur 18B36
Unsur B : golongan VII A , periode 3 , notasi unsur 17B35
Unsur A : golongan VIII A , periode 2 , notasi unsur 18B36
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Harga keempat bilangan kuantum untuk elektron terakhir dari atom 17Cl35 adalah ....
. n = 3;l = 0;m = -1;s = +½
n = 3;l = 0;m = +1; s = -½
n = 3;l = 1;m = +1;s = +½
n = 3;l = 2;m = 0;s = -½
n = 3;l = 1;m = 0;s = -½
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1s22s22p63s23p8
1s22s22p63s23p64s2
1s22s22p63s23p74s1
1s22s22p63s23p64s24p33d10
1s22s22p63s23p64s23d104p3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada pembakaran bensin (C8H18) persamaan reaksinya adalah:
2C8H18 (l) + 25 O2(g) → 16 CO2(g) +18 H2O(g)
Pernyataan yang benar tentang persamaan reraksi tersebut adalah ....
2 molekul C8H18 tepat bereaksi dengan 25 molekul gas oksigen
Tidak semua atom H pada C8H18 membentuk H2O
Pembakaran 2 gram C8H18 menghasilkan 16 gram CO2
Jumlah atom O pada reaktan 50 dan jumlah atom O pada produk 32
Reaksi pembakaran sempurna bensin menghasilkan CO2, H2O dan CO
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(1) dan (2)
(1) dan (3)
(2) dan (3)
(2) dan (4)
(3) dan (4)
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Serbuk tembaga (II) oksida larut dalam asam klorida membentuk tembaga (II) klorida dan air. Persamaan reaksi setara dan lengkap dari reaksi tersebut adalah ....
Cu2O (s) + HCl (aq) → Cu2Cl (aq) + H2O (l)
Cu2O (s) + 2 HCl (aq) → 2 CuCl (aq) + H2O (l)
CuO (s) + HCl (aq) → CuCl (aq) + H2O (l)
CuO (s) + 2 HCl (aq) → CuCl2 (aq) + H2O (l)
Cu2O (s) + 4 HCl (aq) → 2 CuCl2 (aq) + 4 H2O (l)
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