磁酸鈣不是下列哪一項物質的成分?

國二下理化Chap3-4 酸鹼中和 2025 0217

Quiz
•
Chemistry
•
8th Grade
•
Easy
Sone Wang
Used 5+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
貝殼
大理岩
石灰
灰石
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
酸鹼中和的實驗中,可以發現反應過程中,混合溶液溫度會如何改變?
下降
不變
上升
不一定
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列關於氯化鈉的敘述,何者錯誤?
只能從酸鹼中和產生
是白色晶體,又稱食鹽
可作調味品或用以保存食物
是工業上製造金屬鈉、氯氣及氯氧化鈉的原料。
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
硫酸鈣具有哪些性質?甲.白色固體;乙.易溶於水;丙.為石膏的主要成分;丁.可作石膏像。
甲乙丙
乙丙丁
甲丙丁
甲乙丁
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列關於碳酸氫鈉的敘述,何者錯誤?
白色固體,能作胃藥
俗稱小蘇打,可以當發粉製作麵包
溶於水後呈酸性
易溶於水
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
關於碳酸鈉性質的敘述,何者錯誤?
白色固體
不易溶於水
溶於水後呈鹼性
可作清潔劑,所以又稱洗滌鹼。
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列哪一項是酸鹼中的離子反應式?
H- + OH- → H2O
H2O → H+ + OH-
2H2O → 2H2 + O2
2H2 + O2 → 2H2O
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