Which of these elements reacts to acid rain of pH 5.4?

Question

Copper

Platinum

Lead

Aluminum

Magnesium

Sodium

Sulfur

Iron

Zinc

Answer 1

Lead, magnesium, iron, and zinc will all react with an acidic solution (although to varying extents). Copper doesn't dissolve in non-oxidizing acids but acid rain contains the mildly oxidizing SO4(2-) ion from sulfuric acid, so copper should react as well. Platinum is inert and will not dissolve. Aluminium, though theoretically a reactive metal, is protected by an unreactive oxide layer, and should not react either. Sodium will react violently with water at any pH. Sulfur will not react.

Answer 2

all of the metals will react to some extent. the sodium will catch fire regardless of pH. platinum should be the most resistant.

i don't think elemental sulfur will do much at all.