Question

please help on answering these questions ​

Answer 1

$\huge\boxed{\fcolorbox{blue}{purple}{Answer}} = > \\ \\ a) \: \: Auso4 \\ \\ b) \: \: Au \: \: \: \: \: \: \: \:$

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Answer 2

Answer:AuSO4

Au

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Explanation: