Zinc Guide APK
最新版本
2.1.2 for Windows
更新
2023年January24日
信息
版 2.1.2 (#4)
更新 2023年January24日
APK檔案大小 2.8 MB
Android 最低版本需求 Android 4.0+ (Ice Cream Sandwich)
開發人員 Medivac
類別 教育 (應用)
應用 ID com.droidmedic.zincguide
開發者備註 Zinc Guide is best application on playstore
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內容描述
Zinc is a chemical element with symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning).
Brass, an alloy of copper and zinc in various proportions, was used as early as the third millennium BC in the Aegean, Iraq, the United Arab Emirates, Kalmykia, Turkmenistan and Georgia, and the second millennium BC in West India, Uzbekistan, Iran, Syria, Iraq, and Israel[3] (Judea[4]).[5] Zinc metal was not produced on a large scale until the 12th century in India, though it was known to the ancient Romans and Greeks.[6] The mines of Rajasthan have given definite evidence of zinc production going back to the 6th century BC.[7] To date, the oldest evidence of pure zinc comes from Zawar, in Rajasthan, as early as the 9th century AD when a distillation process was employed to make pure zinc.[8] Alchemists burned zinc in air to form what they called "philosopher's wool" or "white snow".
Application provides following Features
========================================
Easy to Use
Friendly GUI
Free of Cost
Brass, an alloy of copper and zinc in various proportions, was used as early as the third millennium BC in the Aegean, Iraq, the United Arab Emirates, Kalmykia, Turkmenistan and Georgia, and the second millennium BC in West India, Uzbekistan, Iran, Syria, Iraq, and Israel[3] (Judea[4]).[5] Zinc metal was not produced on a large scale until the 12th century in India, though it was known to the ancient Romans and Greeks.[6] The mines of Rajasthan have given definite evidence of zinc production going back to the 6th century BC.[7] To date, the oldest evidence of pure zinc comes from Zawar, in Rajasthan, as early as the 9th century AD when a distillation process was employed to make pure zinc.[8] Alchemists burned zinc in air to form what they called "philosopher's wool" or "white snow".
Application provides following Features
========================================
Easy to Use
Friendly GUI
Free of Cost
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