Sains tingkatan 3 bab 4

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Science
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1st - 12th Grade
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Medium
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1.
FLASHCARD QUESTION
Front
Apakah yang dimaksudkan dengan kereaktifan logam?
Back
Kereaktifan logam merujuk kepada keupayaan logam untuk bertindak balas dengan bahan lain, seperti asid atau oksigen.
2.
FLASHCARD QUESTION
Front
Senaraikan logam yang tidak boleh diturunkan oleh karbon.
Back
Kalium, natrium, magnesium.
3.
FLASHCARD QUESTION
Front
Mengapa sanga berada di atas leburan timah atau leburan besi dalam relau bagas?
Back
Kerana sanga kurang tumpat.
4.
FLASHCARD QUESTION
Front
Apakah mineral yang wujud secara unsur?
Back
Emas.
5.
FLASHCARD QUESTION
Front
Apakah nama mesin yang digunakan untuk melebur logam?
Back
Relau bagas.
6.
FLASHCARD QUESTION
Front
Susun logam berikut mengikut kereaktifan berkurang: Karbon, besi, magnesium, aluminium, zink.
Back
Magnesium, aluminium, zink, besi, karbon.
7.
FLASHCARD QUESTION
Front
Apakah fungsi karbon dalam proses pengurangan logam?
Back
Karbon digunakan untuk menurunkan logam dari bijihnya.
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