Question

Reaction and explaination of cassitrite
tin.​

Answer 1

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The dioxide SnO2 (cassiterite) forms when tin is heated in the presence of air. SnO2 is amphoteric, which means that it dissolves in both acidic and basic solutions. Stannates with the structure [Sn(OH)6]2−, like K2[Sn(OH)6], are also known, though the free stannic acid H2[Sn(OH)6] is unknown.

Answer 2

Answer:

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