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Answer:
Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter. Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.
Answer: Iron is magnetic, which means a magnet could be used to attract the iron filings out of the mixture. Salt is water soluble. The salt will dissolve and the sand will not. Hope this helped! :)
I did the math i got 220 grams