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Which of the following cannot be put down the drain? Check all that apply. 1-your final...

Which of the following cannot be put down the drain? Check all that apply.

1-your final product

2-leftover zinc

3-dilute sodium hydroxide

4-supernatant from filtering

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Answer #1

Final product can be drained depending on its boiling point. If it has high boiling point than water , it can be drained simply.

Zinc is a metal, in solid state. So Which can also be drained by removing water.

Dilute sodium hydroxide, when we are separating it from water, there is a chance to loss dilute sodium hydroxide also. Because it is diluted solution with less concentration.

Supernatant is something which will get after filtration, with less content of water. It can be drained easily.

So, the answer is dilute sodium hydroxide, which cannot be drained.

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