Answer: A, C, E
Explanation: PLATO. all testable questions.
From shortest wavelength to longest wavelength: ultraviolet ,visible light ,infrared
Answer: It's a redox reaction
Explanation:
3.9 g + 12.7 g = 16.6 g
The sum of the masses of potassium and iodine equals the mass of the product, potassium iodide. The results are consistent with he law of conservation of mass.
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4% mass / volume :
4 g ---------> 100 mL
1.2 g ------- ? mL
V = 1.2 * 100 / 4
V = 120 / 4
V = 30 mL
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