You are doing an experiment with strong acids. What should you wear to protect your skin? A. Scarf B. Gloves and lab coat C. Sandals D. Ring 相关知识点: 试题来源: 解析 B。做有强酸的实验时,应穿戴手套和实验服来保护皮肤。Scarf 围巾不能保护皮肤免受强酸伤害。Sandals 凉鞋不能保护皮肤,且...
Describe some physical and chemical properties of acids and bases. What is strong about a strong acid. What is common to all acids? What are the differences between acids and bases? What are the definitions of acids and bases? What property is characteristic of all strong acids and strong ba...
In chemistry, there are seven "strong" acids. What makes them "strong" is the fact that they completely dissociate into their ions (H+and an anion) when they are mixed with water. Every other acid is a weak acid. Because there are only seven common strong acids, it is easy to commit...
What are the seven strong acids? There are many strong acids. Some examples of strong acids include hydrochloric acid, stomach acid, sulfuric acid, perchloric acid, hydrobromic acid, nitric acid, and hydroiodic acid. What is meant by strong acid? Acid strength is determined by the amount of ...
greater than 7 is considered basic, or alkaline. Strong acids have a higher concentration of hydrogen ions, and they are assigned values closer to 0. Conversely, strong bases have higher concentrations of hydroxide ions, and they are assigned values closer to 14. Weaker acids and bases are ...
What makes an acid strong?Question:What makes an acid strong?Acids:Acids are substances that are made up of molecules that can donate or give off hydrogen ions (H+). Acids have a pH less than 7, and they can usually dissolve metals and have a sour taste. Examples of acids include hydr...
"These amino acids are usually in competition with tryptophan—the precursor of serotonin—to cross the blood-brain barrier, meaning to enter the brain", she says. "So with less of these amino acids available, it increases the chance that tryptophan is picked up, which can result in an incr...
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These gases are also responsible for acid rain. Both undergo reactions in the atmosphere that produce strong acids, which dissolve in rainwater. The resulting rain can increase the acidity of soils and lakes, killing off sensitive species, and may directly damage trees and other plants. It can ...
Aramids fibers show resistance to many solvents and salt, but can be weakened by strong acids. While they are difficult to dye and sensitive to UV light, they are hard to burn, and instead of melting, they decompose. Aramid products are available as filament yarn, staple fiber or pulp....