Kuis 2
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
Woagi 20
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Apabila ion Sn+4 bergabung dengan ion O-2 maka akan terbentuk senyawa dangan rumus
Sn2O3
SnO2
Sn2O
Sn2O4
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Diketahui bilangan oksidalogam Ca =+2, O= -2, maka nama senyawa yang dibentuk oleh kedua unsur adalah
Kalium oksida
Kalsium dioksida
Kalium dioksida
Kalsium oksida
3.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
Nama-nama senyawa di bawah ini tidak sesuai dengan rumus kimianya, kecuali
CaCO3 = kalsium karbonat
Cu(NO3)2 = tembaga nitrat
Fe2O3 = besi (II) trioksida
AlCl3 = aluminium trioksida
4.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Rumus kimia dari senyawa hidrat kalsium sulfat dihidrat adalah
10 H2O
CaSO4.2H2O
Na2CO3.10H2O
4H2O
5.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Setarakan persamaan rekasi ini !
Al2(CO3)3 + H2O -> AI(OH)3 + CO2
Al2(CO3)3 + 3H2O -> AI(OH)3 + 3CO2
Al2(CO3)3 + H2O -> 2AI(OH)3 + 3CO2
Al2(CO3)3 + 3H2O -> 2AI(OH)3 + 3CO2
Al2(CO3)3 + 3H2O -> 2AI(OH)3 + 3O2
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Dari reaksi : Cu + 2NHO3 → Cu(NO3)2 + H2 yang disebut zat produk adalah
HNO3 dan H2
Cu(NO3)2 + H2
Cu(NO3)2
Cu dan HNO3
7.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Timbal (II) nitrat mempunyai rumus kimia
Pb(NO3)2
Pb2NO3
Pb2NO3
2PbNO3
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