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Clearnote
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Junior High
Science
求3 4題的詳解
Science
Junior High
almost 4 yearsago
Hsiao
求3 4題的詳解
第3次 段考複習 209 將白色的砂糖、麵粉與食鹽分別置於蒸發皿中,並用酒精燈加熱一段時間,觀察其顏色 變化情形,試回答下列問題: 03. 本實驗中,最後實驗結果相同的共有幾個? (A) O (B) 1 (C) 2 (D) 3 ( 04. 實驗中,蓋在蒸發皿上的錶玻璃會有液滴形成,若用乾燥氯化亞鈷試紙檢驗, 顏色將如何變化?可能產物為何? (A)藍色,可能是水 (B)粉紅色,可能是水 (C)藍色,可能是二氧化碳 (D)粉紅色,可能是二氧化碳 將甲、乙、丙三塊質量相同的物體置入水中,結果如右圖所示。 甲 (方塊不代表體積的大小)試回答下列問題: N
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