
Kuis Kimia Pertemuan 7
Authored by Ir S
Chemistry
12th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Konfigurasi elektron ion X2- yang memiliki bilangan massa 28 dan 12 neutron adalah…..
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p6 4s1
1s2 2s2 2p6 3s2 3p6 3d1
1s2 2s2 2p6 3s2 3p6 4s2 3d1
1s2 2s2 2p6 3s2 3p6 4s2 3d2
2.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Pembakaran sempurna 4,0 gram cuplikan yang mengandung senyawa hidrokarbon menghasilkan 2,2 gram gas karbon dioksida. (Ar C = 12 dan Ar O = 16). Persentase massa karbon dalam cuplikan tersebut adalah…..
8,25%
9,75%
10,25%
12,75%
14,75%
3.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Mineral yang terkandung dalam air sadah sementara adalah...
Ca(HCO3)2 dan Mg(HCO3)2
CaCl2 dan MgSO4
CaSO4 dan MgSO4
BaCl2 dan MgCl2
MgSO4 dan MgCO3
4.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Jika diketahui Ksp AgCl = 1,8 x 10-10, maka kelarutan AgCl dalam HCI 0,01 M adalah...
1,5 x 10-9 mol/L
1,8 x 10-10 mol/L
1,8 x 10-8 mol/L
2,1 x 10-10 mol/L
2,1 x 10-8 mol/L
5.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
r = k [F2]2 [ClO2]
r = k [F2]2 [ClO2]2
r = k [F2] [ClO2]2
r = k [F2] [ClO2]
r = k [ClO2]2
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