
KIMIA UNSUR Part 2
Authored by Ning Setiawaty
Chemistry
12th Grade
Used 2+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pernyataan yang tepat mengenai cara memperoleh logam alkali adalah…
Mereduksi logam kloridanya
Oksidasi garam kloridanya
Elektrolisis leburan garam kloridanya
Elektrolisis larutan garam kloridanya
Hidrolisis larutan garam kloridanya
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kalium dihasilkan dengan cara mengalirkan uap natrium dalam lelehan KCl menggunakan prinsip...
Le Chatelier
Hall-Heroult
Wohler
Oswald
Down
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Persamaan reaksi yang benar bila sepotong logam Natrium dimasukkan dalam segelas air adalah ….
2Na(s) + H2O (l) → Na2O (s) + H2 (g) + energi
2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g) + energi
2Na (s) + 2H2O (l) → 2NaOH (aq) + O2 (g) + energi
Na (s) + 2H2O (l) → Na(OH)2 (aq) + H2 (g) + energi
2Na (s) + 2H2O (l) → Na2O2 (s) + 2H2 (g) + energi
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Berikut ini adalah data kegunaan gas mulia dalam kehidupan sehari – hari. Pasangan yang tepat antara unsur dan kegunaannya dapat dilihat pada unsur ….
(1) dan (2)
(1) dan (3)
(2) dan (3)
(3) dan (4)
(3) dan (5)
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Berikut senyawa yang mengandung unsur golongan IA dan IIA:
1. NaCl
2. KClO3
3. Na2CO3
4. CaOCl2
5. BaCO3
6. CaC3
Senyawa yang digunakan untuk melelehkan salju di jalan dan bahan pembuat korek api adalah …
(1) dan (2)
(2) dan (3)
(2) dan (4)
(4) dan (5)
(5) dan (6)
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Unsur ini terkandung dalam senyawa yang digunakan untuk membuat cetakan gigi dan pembalut patah tulang. Ion dari unsur ini juga dapat mengakibatkan air bersifat sadah. Unsur yang dimaksud juga terdapat dalam senyawa ...
CFC
KrF2
KNO3
CaSO4
Na2CO3
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