Calculate the number of oxygen atoms in a 100.0g sample of diphosphorus pentoxide P2O5 .

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

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