Jawapan

2016-05-15T22:48:57+08:00

Ini Jawapan Diperakui

×
Jawapan diperakui mengandungi maklumat yang boleh dipercayai dan diharapkan yang dijamin dipilih dengan teliti oleh sepasukan pakar. Brainly mempunyai berjuta-juta jawapan berkualiti tinggi, semuanya disederhanakan dengan teliti oleh ahli komuniti kami yang paling dipercayai, tetapi jawapan diperakui adalah terbaik di kalangan terbaik.
Mineral diversity of the Earth's Crust

 
Minerals are elements or compounds that occur naturally in the earth's crust . For example , gold and silver found in mineral form . This is called the natural elements . There is also a compound found in the form of minerals , such as carbonate and silicate . This we call the natural compounds .
sambungan
Mineral properties
1 ) Violence
There are some very hard mineral that can be used as a knife sharpener . And there is also a soft mineral that can be scratched by simply using nails .

2 ) Solubility In Water
There is a mineral that dissolves , and there is no soluble minerals . Examples of such mineral is soluble magnesium oxide and calcium sulphide.
continue
3 ) Heat Effect On Minerals
When heated , the metal oxide does not decompose to form a new material . But metal carbonate will decompose to the metal oxide and carbon dioxide when heated.