A. sodium chloride B. potassium chloride C. calcium chloride D. magnesium chloride 相关知识点: 试题来源: 解析 A。食盐的主要成分是氯化钠,即 sodium chloride。选项 B 是氯化钾,选项 C 是氯化钙,选项 D 是氯化镁。所以答案是 sodium chloride。反馈...
百度试题 结果1 题目What is the chemical symbol for potassium? A. K B. P C. Pt D. Kr 相关知识点: 试题来源: 解析 a) K 反馈 收藏
百度试题 结果1 题目Which chemical element is used in fertilizer? A. Potassium B. Sulfur C. Phosphorus D. Boron 相关知识点: 试题来源: 解析 C。磷在肥料中被广泛使用。钾也用于肥料但本题重点考查磷。硫和硼在其他方面有应用。反馈 收藏
A. sodium hydroxide B. potassium hydroxide C. calcium hydroxide D. magnesium hydroxide 相关知识点: 试题来源: 解析 A。制作肥皂常用氢氧化钠,即 sodium hydroxide。选项 B 是氢氧化钾,选项 C 是氢氧化钙,选项 D 是氢氧化镁。所以答案是 sodium hydroxide。反馈...
Consider this: Carbonic acid, H2CO3is a weak acid.The conjugate base of a weak acid is a strong base. Thus the carbonate ion is a strong base. Since all group I compounds are soluble, potassium carbonate dissociates into K+ and CO32-ions, just like carbonic acid. (But technically carb...
To be sure potassium chloride is helping your condition, your blood may need to be tested often. Your heart rate may also be checked using an electrocardiograph or ECG (sometimes called an EKG) to measure electrical activity of the heart. T
In the field of medicine, many chemical substances can be used as intermediates. One such substance is Potassium tert-butoxide, which can be applied in the medical field. Those involved in pharmaceutical production can gain a comprehensive understanding of this chemical substance. The following is a...
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If you've ever used a treatment for a fungal infection, like athlete's foot, you probably used a product that contained potassium permanganate. When it comes to the chemical formula, it is as simple as counting electrons.Answer and Explanation: ...
Potassium binoxalate, also known as potassium hydrogenoxalate, is a hazardous chemical substance. Its molecular formula is KHC 2 O 4 and it appears a..