Answer:D
Explanation: i just took the quiz (apex)
When you add salt to water, you lower to freezing point of the substance.
So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered.
In answer to the question. It takes longer for water with salt in it to freeze because the substance requires a lower temperature than normal water to freeze.
<span>The correct answer is:
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4) "The valence electrons are given up by the Na and gained by the F. "
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The long handle gives leverage so you can pound nails in and the round end is meant for pounding nails and the tongs end is for pulling them out
