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2 February, 12:59

Why are chemicals and hot objects never placed directly on the balance pan?

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  1. 2 February, 14:06
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    The answer is to retain the balance pan clean and to keep chemicals from mixing with other chemicals. Also some chemicals can respond with the metal of the balance pan and cause it to oxidize or corrode. Each time you use the balance pan, use weighing paper or a small dish or beaker to weigh out chemicals.
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