Question

try again! answer two in a row correctly to continue. click to fix any plural or possessive errors below. if there is no error, just click \submit answer.\ tip: there is more than one chemist. after oliver oken tried the experiment himself, he found a mistake in the other chemistss results.

Explanation:

Since there are multiple chemists, the possessive form should be "chemists'". The original "chemists's" is incorrect as the plural noun "chemists" already ends in -s, so only an apostrophe is needed to show possession.

Answer:

After Oliver Oken tried the experiment himself, he found a mistake in the other chemists' results.