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how did you know that the object is made of metals​

Sagot :

Answer:

Take your piece of metal and test its magnetization by sticking a magnet to it. If your metal sticks to the magnet, the metal could be cast iron or steel. If the metal does not stick to the magnet, your metal could be copper, brass, solver or aluminum

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Answer:

when it gets wet

Explanation:

because when it gets wet it will rust and when you smell it smell different