TRY OUT UN 1

TRY OUT UN 1

12th Grade

40 Qs

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TRY OUT UN 1

TRY OUT UN 1

Assessment

Quiz

Chemistry

12th Grade

Practice Problem

Hard

Created by

teguh santoso

Used 2+ times

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40 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

(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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