Answer this and you will be the ! you are hiking one day and find two minerals and take them to your next science class. after testing, you discover that one has a chemical composition of nacaalf and one has a chemical composition of fecro. how would you classify these rocks, respectively? a. halide; halide b. halide; oxide c. oxide; silicate d. carbonate; halide
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Ответ:
Option-B (Halide; oxide) is the correct answer.
Explanation:Halides are those substances which contains negatively charged halide ion i.e. X⁻.
Examples: F⁻ (Fluoride) , Cl⁻ (Chloride) , Br⁻ (Bromide) , I⁻ (Iodide) e.t.c.
Oxides are those substances which atleast containn one Oxygen atom.
Examples: FeO (Iron Oxide), Cr₂O₃ (Chromium Oxide)
Silicates are those anionic substances which contains silicon and oxygen with general formula [SiO. 4−x] n.
Examples: [SiO₄]⁻⁴ (Nasosilicate) , [Si₂O₇]⁻⁶ (Sorosilicates)
Carbonates are those substances which contains carbonate anion i.e. CO₃²⁻.
Examples: Na₂CO₃ (Sodium Carbonate) , MgCO₃ (Magnesium Carbonate)
Conclusion:As in NaCaAlF, F⁻ is present hence, it is an Halide and the presence of O in FeCrO makes it Oxide.
Ответ:
This motion is known as Brownian motion.
Explanation:
This motion is known as Brownian motion.