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Chromium
A lustrous, hard, and brittle metallic element used in alloys to increase strength and corrosion resistance.
Krypton
A chemical element with the symbol Kr and atomic number 36, a noble gas used in lighting and photography.
Cobalt
A chemical element with the symbol Co and atomic number 27, known for its metallic properties and use in alloys and batteries.
Mixture
A combination of two or more substances in which each substance retains its chemical identity and properties.
Q16: Referring to Scenario 9-3, the parameter of
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Q89: Referring to Scenario 13-3, the director of