2. Which pair of materials cannot be distinguished after mixing/combining them?
a. sand and pebbles
c. rock salt and paper
b. white sugar and iodized salt
d. Paper clips and staple wire
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2. Which pair of materials cannot be distinguished after mixing/combining them?
a. sand and pebbles
c. rock salt and paper
b. white sugar and iodized salt
d. Paper clips and staple wire
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Answer:
b. white sugar and iodize salt
Explanation:
because if we mix them we cannot identify which is sugar and which is salt