【題目】甲、乙、丙三種固體物質(zhì)的溶解度曲線如右圖所示,請回答:
(1)圖中M點(diǎn)表示:____℃時,甲和乙的溶解度相等。
(2)溶解度隨溫度的升高而減小的物質(zhì)是______。
(3)若要從甲的飽和溶液中獲得甲晶體,常采
用_____ _ 的方法。
(4)t2℃時,將等質(zhì)量的上述三種物質(zhì)分別加入到100g水中,充分?jǐn)嚢瑁绻玫降娜芤褐挥幸环N是飽和溶液,則該飽和溶液中的溶質(zhì)是______。
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