객관식
Which element is a major component found in chlorophyll molecules?
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5. Molecules and Compounds
Periodic Table: Elemental Forms (Simplified)
객관식
Which element is commonly used for the shiny trim and plating on cars due to its corrosion resistance and reflective appearance?
A
Sodium (Na)
B
Neon (Ne)
C
Chromium (Cr)
D
Sulfur (S)
검증된 단계별 안내1
Understand the properties required for a metal to be used in shiny trim and plating on cars: it must be corrosion resistant and have a reflective appearance.
Recall that Sodium (Na) is a highly reactive metal that tarnishes quickly and is not suitable for plating or trim.
Recognize that Neon (Ne) is a noble gas and does not form solid metals or plating materials.
Consider Sulfur (S), which is a nonmetal and does not have metallic properties or reflective appearance.
Identify Chromium (Cr) as a transition metal known for its excellent corrosion resistance and shiny, reflective surface, making it the common choice for car plating and trim.
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