Tenaga dan perubahan kimia
Quiz
•
Science
•
9th Grade
•
Medium
NOR Moe
Used 2+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
1. Apakah perubahan tenaga yang berlaku dalam suatu sel kimia ringkas?
tenaga kimia --> tenaga elektrik
tenaga kinetik --> tenaga elektrik
tenaga elektrik--> tenaga kimia
tenaga kimia --> tenaga kinetik
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
2. Dalam sel kimia ringkas yang terdiri daripada elektrod Magnesium dan kuprum. Elektrod manakah bertindak sebagai ANOD?
Kuprum
Magnesium
3.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
3. Dalam sel kimia ringkas yang terdiri daripada elektrod magnesium dan elektrod kuprum. Mengapakah elektrod Magnesium dipilih sebagai terminal negatif?
kedudukan magnesium lebih rendah dalam siri elektrokimia
kuprum lebih elektropositif daripada magnesium
kedudukan magnesium lebih tinggi dalam siri elektrokimia
kuprum menderma elektron
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Rajah menunjukkan sel kimia ringkas. antara logam berikut yang manakah boleh menggantikan kuprum untuk menaikkan bacaan voltmeter?
Plumbum
Zink
Argentum
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
5. Diberi ion Cu2+ , ion NO3- , ion H+ , ion OH-
ion manakah akan tertarik ke kation?
ion Cu2+ dan
ion H+
ion H+ dan
ion ion NO3-
ion OH- dan
ion NO3-
ion Cu2+ dan
ion OH-
6.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
6. Yang manakah betul untuk setengah persamaan bagi tindakbalas di Anod?
Mg2+ + 2e --> Mg
Mg2+ --> Mg + 2e
Mg + 2e --> Mg2+
Mg --> Mg2+ + 2e
7.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
7. Apakah proses yang berlaku di Anod?
Proses pengoksidaan
Proses penurunan
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