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Sebatian Kalsium
• Kalsium tidak dijumpai sebagai unsur semula
jadi kerana unsur ini _________.reaktif
Sebatian Kalsium Nama Umum Unsur yang Hadir
Kalsium
Oksida
Kalsium
Karbonat
Kalsium
Hidroksida
Kapur tohor
Quick Lime
Batu Kapur
Lime stone
Kapur Mati
Sleaked lime
Kalsium Karbonat
Sifat-sifat Kalsium Karbonat
• Tidak larut air
• Kalsium karbonat bertindak balas dengan asid
cair membentuk garam, air dan karbon dioksida.
• Kalsium karbonat terurai kepada kalsium oksida
dan membebaskan gas karbon dioksida apabila
dipanaskan dengan kuat.
Pembentukan Kalsium Oksida, Kalsium
Hidroksida dan Air Kapur
• Kalsium Oksida terbentuk apabila kalsium
karbonat dipanaskan dengan kuat.
• Apabila kalsium oksida yang panas itu
dititiskan dengan beberapa titik air, ia meretak
dan pembuakan berlaku. Banyak haba
terbebas dan kalsium hidroksida terbentuk.
• Apabila air yang banyak ditambah kepada
kalsium hidroksida, larutan kalsium hidroksida
(air kapur) terbentuk.
Lengkapkan carta alir dengan prosedur yang betul
Kalsium Karbonat
(______________)
Kalsium Oksida
(______________)
Kalsium hidroksida
(______________)
Larutan Kalsium
hidroksida
(______________)
Kegunaan Sebatian Kalsium
Sebatian Kalsium Sifat Kegunaan
Kalsium Karbonat
- Marmar
Tidak larut dalam
air
Lantai,
permukaan meja
Kapur Tohor dan
Kapur Mati
Alkali Menaikkan pH
tanah,
mengeraskan
tanah

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6.4

  • 1. Sebatian Kalsium • Kalsium tidak dijumpai sebagai unsur semula jadi kerana unsur ini _________.reaktif Sebatian Kalsium Nama Umum Unsur yang Hadir Kalsium Oksida Kalsium Karbonat Kalsium Hidroksida Kapur tohor Quick Lime Batu Kapur Lime stone Kapur Mati Sleaked lime
  • 3. Sifat-sifat Kalsium Karbonat • Tidak larut air • Kalsium karbonat bertindak balas dengan asid cair membentuk garam, air dan karbon dioksida. • Kalsium karbonat terurai kepada kalsium oksida dan membebaskan gas karbon dioksida apabila dipanaskan dengan kuat.
  • 4. Pembentukan Kalsium Oksida, Kalsium Hidroksida dan Air Kapur • Kalsium Oksida terbentuk apabila kalsium karbonat dipanaskan dengan kuat. • Apabila kalsium oksida yang panas itu dititiskan dengan beberapa titik air, ia meretak dan pembuakan berlaku. Banyak haba terbebas dan kalsium hidroksida terbentuk. • Apabila air yang banyak ditambah kepada kalsium hidroksida, larutan kalsium hidroksida (air kapur) terbentuk.
  • 5. Lengkapkan carta alir dengan prosedur yang betul Kalsium Karbonat (______________) Kalsium Oksida (______________) Kalsium hidroksida (______________) Larutan Kalsium hidroksida (______________)
  • 6. Kegunaan Sebatian Kalsium Sebatian Kalsium Sifat Kegunaan Kalsium Karbonat - Marmar Tidak larut dalam air Lantai, permukaan meja Kapur Tohor dan Kapur Mati Alkali Menaikkan pH tanah, mengeraskan tanah