LCC TEST 1
11th Grade
•20 Qs
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LCC TEST 1
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Fujia Rubbianti
Used 2+ times
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Apabila elektron dalam orbit atom menyerap suatu kuantum energi, elektron akan meloncat keluar menuju orbit yang lebih tinggi. Sebaliknya, jika elektron memancarkan suatu kuantum energi, elektron akan jatuh ke orbit yang lebih dekat dengan inti atom, pendapat ini dikemukakan oleh...
Dalton
Rutherford
Bohr
Schrodinger
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Ke arah CH4 dan H2O ; penambahan volume
Ke arah CH4 dan H2O ; penambahan tekanan
Ke arah H2 dan H2O ; penambahan tekanan
Ke arah CH4 dan CO; penambahan volume
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Jika seseorang menggunakan bahan kimia dengan simbol seperti disamping , maka penanganan pertama yang tepat jika terjadi kecelakaan akibat bahan tersebut adalah . . .
Menyemprotkan tabung APAR
Mengalirkan air pada bagian yang terkena zat
Membawa korban ke ruang terbuka
Meminta korban untuk berkumur-kumur
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Ion Cu2+ memiliki elektron unpaired (tidak berpasangan)
Benar
Salah
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Berdasarkan persamaan reaksi berikut:
Na2CO3 + 2HCl ⟶ 2NaCl + H2O + CO2
Jumlah gas CO2 (STP) yang diperoleh dari 5,3 gram Na2CO3 (Mr = 106) adalah ...
1,12 L
0,112 L
2,24 L
0,224 L
7.
MULTIPLE CHOICE QUESTION
45 sec • 4 pts
Dari reaksi berikut,
2HBr + H2SO4 ⟶ Br2 + SO2 + 2H2O
Spesi yang bertindak sebagai reduktor adalah ....
HBr
Br2
H2SO4
SO2
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