system
Given the following post, respond as if you're commenting on Reddit:
human
Why does salt melt ice and mess up slugs?

What allows it to have these properties?
gpt
Salt doesn't really melt ice like heat does. When you add salt to water, it lowers the temperature that it freezes at. So when water would normally melt/freeze at 32F, it now happens at, say 5F

So, if you wanted to have a salt popsicle, you would have to make your freezer a lot colder in order to freeze them.

Slugs die when you put salt on them because too much water leaves their body and they dry out and die (called osmosis). There's a simple saying "water follows salt". You could also kill them by pouring sugar on them, but it might not be *as* efficient.