Substance B was heated at first gently and then more strongly in a bunsen flame. Two gases were given off, one of them brown. A yellow residue remained that neutralised both an acidic and an alkaline solution What is Substance B?
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Question:
Substance B was heated at first gently and then more strongly in a bunsen flame. Two gases were given off, one of them brown. A yellow residue remained that neutralised both an acidic and an alkaline solution What is Substance B?
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