Question

An oxide of iron contains 72.2% of metal by mass. Determine the formula of this iron oxide.​

Answer 1

Answer:

Answer: Metal oxides are crystalline solids that contain a metal cation and an oxide anion. They typically react with water to form bases or with acids to form salts. MO + H2O → M(OH)2 (where M = group 2 metal) Thus, these compounds are often called basic oxides.

Explanation:

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