Answer:
318 g / 19.32 g v = 16. your volume is 16 hope this helps
Explanation:
Atomic mass silicon = 28.085 u
1 mol Si ---------------- 28.085 g
? ------------------------ 245 g
245 x 1 / 28.085 => 8.72 mol
answer A
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From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared