Potassium is important for our body's health. What is the symbol for potassium? A. K B. Ca C. Mg D. Fe 相关知识点: 试题来源: 解析 A。本题考查钾的英文符号。选项 B 是钙的符号,选项 C 是镁的符号,选项 D 是铁的符号。只有选项 A 是钾的符号。
When potassium (K) reacts with iodine (I₂), what is the English for the state symbol "s" (solid) in the chemical equation? A. Liquid B. Gas C. Aqueous D. Solid 相关知识点: 试题来源: 解析 D。解析:“s”在化学方程式中的状态符号代表固体(solid)。选项A代表液体(liquid),选项B代表...
What is the correct formula for sodium carbonate? What is the formula weight of sodium carbonate? What is the chemical element symbol of sodium? Which symbol represents an isotope of carbon? What is a carbonate mineral? What is the symbol for phosphorus?
What is the correct formula for copper(ll) nitrite? What is the chemical formula of the nitrate ion? What is the formula of the chlorite ion? For the nitrite ion (NO2-): What is the molecular shape of the ion? What is the formula for the phosphide ion?
What is the formula of a calcium ion? Calcium: Calcium is an essential nutrient in maintaining the skeletal system of the body. It helps in the formation of teeth and also helps nerves to carry messages. Answer and Explanation: Learn more about this topic: ...
Redox titrations measure a reduction-oxidation reaction between an oxidizing agent and a reducing agent. End-point determination may be made using a potentiometer or a redox indicator if color change is not definitive (as when one of the constituents is potassium dichromate). Analyzing a wine for...
Answer to: The following electron configurations correspond to neutral atoms in excited states. What is the element and what is the ground state...
Titrant is added until the reaction is complete. To be suitable for determination, the end of the titration reaction must be easily observable when monitored (indicated) by appropriate techniques, e.g., potentiometry (potential measurement with a sensor) or through a color change. The measurement...
When Gallium is added to certain metals it causes them to become brittle. Gallium has one of the largest ranges in which it is a liquid when compared to other metals. Related Elements Hydrogen Nickel Neon Potassium Helium Copper Sodium Calcium Lithium Zinc Magnesium Scandium Beryllium Aluminum Tita...
In the uterus, the elastic “arms” of the spiral unfold and ensure the correct position in the uterus. A pulling/pressing sensation may occur in the lower abdomen when inserted, similar to a menstrual period. A few weeks after insertion, the position and location of the spiral should be ...