Can you get ice colder than 0 celsius degrees?

The answer is YES!

If you take water and freeze it in the freezer, it will turn into ice and have a temperature around 0C. But if you then add acetone, the temperature can go DOWN to -15C.

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Why does the acetone make ice colder?

This is because it is an endothermic reaction, so instead of releasing more heat (such as for example burning wood or carbon), it will take heat, and therefore the ice becomes colder.