化學之書 vs StoichioAI

BHNKC CHEM 是一款專為 HKDSE 化學科考生量身打造的溫習神器！無論你是在通勤途中，還是考前衝刺，這款 App 都能幫你隨時隨地鞏固化學知識，掌握奪星關鍵。 【核心功能特色】 全新功能：互動知識圖 (Knowledge Graphs) 告別死記硬背！我們將 DSE 最核心的化學概念，轉化為生動、可互動的知識圖譜。支援雙指縮放與拖曳，點擊節點即可查看詳細解說。涵蓋 16 大必考課題，包括： • 電子排佈與週期表 • 金屬活性序與金屬反應 • 鍵合與結構 • 酸和鹼 • 氧化還原、常見氧化還原劑與電化序 (E.C.S.) • 反應速率與化學平衡 • 碳化合物反應路徑 (Organic Pathways) • 工業化學 (哈柏法、氯鹼工業、甲醇生產、綠色化學) 必背筆記 (Must-Know Notes) 精煉各個課題的重點精華，按書本及課題有系統地分類，讓你快速重溫核心概念、定義及常考重點。 實驗裝置 (Experimental Setups) 收錄 DSE 必學的經典化學實驗裝置圖。支援高解析度放大查看，並可一鍵分享圖象給同學一起討論。 化學方程式 (Chemical Equations) 內置完整的化學方程式總覽 PDF，助你輕鬆應付需要書寫全方程式或離子方程式的題目。 多項選擇題庫 (MC Practice) 精選大量 MC 題目，特設自動記錄進度功能。清楚顯示「答對」與「待溫習」的題目，針對弱點反覆練習，提升答題速度與準確率。 官方教學頻道 內置 BHNKC 化學 YouTube 頻道連結，一鍵直達觀看教學影片，學習零死角。 【設計貼心】 • 支援深色模式 (Dark Mode) 與淺色模式 (Light Mode)，對比度經特別優化，保護雙眼。 • 介面簡潔清晰，專為流動裝置設計，閱讀舒適。 立即下載 BHNKC CHEM，讓化學溫習變得更高效、更有趣！

StoichioAI is for Hong Kong secondary chemistry. Students write calculation steps on a whiteboard. The AI reads the working and asks questions, instead of handing over the answer. It is for students preparing for HKDSE Chemistry and for teachers who need to see how their own groups are doing. The interface, topics and AI replies can be switched between Traditional Chinese and English. English uses Hong Kong DSE chemistry wording and British spelling. Students can: Read an interactive lesson, then try the follow-up calculations Write with Apple Pencil or a finger, or submit a photo from the camera or the photo library Ask for a Socratic hint after a wrong attempt. Spoken feedback is Cantonese in Chinese and English in English Review feedback, past attempts, points, and a learning suggestion based on their own weak spots Teachers can: Create a teaching group and invite students with a join code or a school email See weak topics, common mistakes, and each student’s progress Refresh an AI suggestion for the group or for one student Preview questions and reference answers Topics include reacting masses, concentration, pH, volumetric analysis, standard enthalpy changes, Hess's law, rate of reaction, molar volume of gases, equilibrium constant, shifts in equilibrium, organic synthesis calculations, rate equation, activation energy, atom economy, separation and purification, quantitative analysis, instrumental analysis, and analytical chemistry applications. Sign in with an authorised school email. Points are awarded only the first time an exercise is answered correctly.