In the chapter metals and non metals deleted portions starts from occurrence of metals and ends at corrosion and its prevention... Can anyone pls respond. I will mark them at brainliest whether these subtopics are deleted.
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In the chapter on the removed parts of the metal and non-metals begin the appearance of the metal and end with rust and their prevention is:
Appearance of instruments:
- The metals found in the crust are in the form of Elements or a compound called minerals.
- Some metals form as salt dissolved in seawater.
- Minerals that contain iron are called iron minerals (eg Haematite) and minerals that are beneficially mined are called ores.
- The earth's crust is made up of more than 2000 minerals, but of these, only six are very saturated and have a high hand.
- These six minerals are rich in feldspar, quartz, pyroxenes, amphiboles, mica and olivine.
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