Perhatikan persamaan reaksi kimia berikut.
Na2S2O3(aq) + I2(aq) → Na2S4O6(aq) + NaI(aq)
Agar persamaan reaksi kimia di atas setara, maka koefisien untuk Na2S2O3 dan NaI adalah ….
penyetaraan reaksi
Quiz
•
Chemistry
•
10th Grade
•
Medium
noor azizah
Used 117+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan persamaan reaksi kimia berikut.
Na2S2O3(aq) + I2(aq) → Na2S4O6(aq) + NaI(aq)
Agar persamaan reaksi kimia di atas setara, maka koefisien untuk Na2S2O3 dan NaI adalah ….
1 dan 2
1 dan 1
2 dan 1
2 dan 2
2 dan 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca(OH)2(s) + HCl(aq) → CaCl2(aq) + H2O(l)
Persamaan reaksi kimia yang sudah setara ialah ….
Ca(OH)2(s) + HCl(aq) → CaCl2(aq) + 2H2O(l)
2Ca(OH)(s) + HCl(aq) → CaCl2(aq) + 2H2O(l)
Ca(OH)(s) + 2HCl(aq) → CaCl2(aq) + H2O(l)
Ca(OH)2(s) + 2HCl(g) → CaCl2(aq) + 2H2O(l)
Ca(OH)2(s) + 2HCl(aq) → CaCl2(aq) + 2H2O(l)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
aNa2CO3(aq) + bHCl(aq) → cH2CO3(aq) + dNaCl(aq)
Maka koefisien a, b, c, dan d adalah ….
1,2,1,2
1,2,2,1
1,1,2,2
2,1,1,2
2,1,2,1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara persamaan reaksi kimia berikut yang sudah setara adalah ….
Fe2O3(s) + 2Al(s) → Al2O3(s) + Fe(s)
Al(s) + 3H2SO4(aq) → Al2(SO4)3(aq) + 3H2(g)
Mg(OH)2(aq) + 2HCl(aq) → MgCl2(aq) + H2O(l)
C2H5OH(aq) + 3O2(g) → 2CO2(g) + 3H2O(l)
3Cu(s) + 6HNO3(aq) → 3Cu(NO3)2(aq) + NO2(g) + 3H2O(l)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pCa(OH)2 + qH2PO4 → Ca3(PO4)2 + rH2O merupakan reaksi sempurna bila harga p, q, dan r adalah...
2, 2, 4
3, 2, 4
2, 3, 4
2, 3, 6
3, 2, 6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al(OH)3 + H2SO4 → Al2(SO4) 3 + H2O. Koefisien dari persamaan reaksi tersebut adalah ...
1, 2, 3, 6
2, 3, 1, 6
1, 3, 2, 6
3, 2, 1, 6
3, 1, 2, 6
7.
MULTIPLE CHOICE QUESTION
30 sec • 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 Cu2Cl (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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