Why is copper used for electrical wiring instead of iron?
Copper is a better conductor of electricity than iron and is also more resistant to corrosion.
Why does sodium react vigorously with water?
Sodium reacts vigorously with water because it is highly reactive and forms sodium hydroxide and hydrogen gas in an exothermic reaction.
What is an amphoteric oxide?
An amphoteric oxide is a metal oxide that can react with both acids and bases to form salts and water. Examples include aluminum oxide (Al₂O₃) and zinc oxide (ZnO).
Why do metals form basic oxides?
Metals form basic oxides because they react with oxygen to produce compounds that can neutralize acids.
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