還元剤Na₂S₂O₃ 2S₂O₃²⁻→S₄O₆²⁻(四チオン酸イオン) 「チオ」は「一つのOをSで置き換えた」
化学
Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO? Memorize 3
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