Help quickly please it hard

History

1 answer:

eimsori [14]3 years ago

8 0

Answer:

Both are only physical changes.

Explanation:

The green stuff is cupric chloride, a byproduct of corrosion of the valve body or possible copper leachate in the water. Either way, it's typical of water leakage where the water is of low pH. Boiling sugar to make caramel is the same as eating sugar, just in a different form.

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