Acetic acid and acetic anhydride are flammable. Most other acids are themselves non-flammable but, in general, acids react with metals to evolve hydrogen which is highly flammable. 某些酸类具有相对高的凝点,需要在海运途中加温来防止结块。例如醋酸,无烟硫酸(其凝点根据纯度不同而不同)和高纯度磷酸。
Some kinds of acids react on metals to cause ___ (化学的) changes. (根据汉语意思填空) 相关知识点: 试题来源: 解析 chemical [解析] [分析] [详解] 考查形容词。句意:有些酸对金属起反应,引起化学变化。根据名词changes可知此处要用形容词,且由汉语“化学的”可知chemical符合题意。故填chemical。反馈...
解析 答案是chemical.本题考查语境中选用恰当的词或短语;chemistry n. 化学;chemical adj. 化学的;题干中需要形容词充当changes 的定语;chemical changes化学变化;故答案是:chemical.结果一 题目 【题目】Some kinds of acids react on metalsto cause__(chemistry)changes . 答案 【解析】答案是chemical.本题考查...
Acid Properties Continued Acids react with metals Acids react with some metals to produce hydrogen gas. Acids conduct electric current When acids are dissolved in water, they break apart and form ions. These ions make it possible for the solution to conduct an electric current. Example: batteries...
Briefly explain why HCP metals are typically more brittle than FCC and BCC metals. Why do ionic compounds have high melting points? Explain why Zn dissolves in both HCl and HNO3 whereas Cu only dissolves in HNO3. Why we can't use HCl to react with Fe to create FeCl_3?
Basesreactwithmanysaltsofheavymetalstoproduceinsolublehydroxideprecipitatesinadoubledisplacementreaction.Forexample,thebasesodiumhydroxidereactswithiron(III)nitratetoformtheprecipitateiron(III)hydroxide:FeNO3(aq)+3NaOH(aq)Fe(OH)3+3NaNO3(aq) Addingtheindicatorlitmustoabaseproducesabluecolor.Thuslitmus...
How-do-acids-react-on-metals网络酸如何对金属起反应 网络释义 1. 酸如何对金属起反应 翻译词典... ... How do acids react on metals? 酸如何对金属起反应? Plants react to light. 植物对光照起反应. ... www.tdict.com|基于1 个网页
B. Sour, reactive with metals, ability to change colors in indicators ExplanationThe given answer correctly lists three properties of an acid: sour taste, reactivity with metals, and the ability to change colors in indicators. Acids typically have a sour taste, can react with metals to produce...
用介词to,on,against填空? (1)Plants react light.? (2)Certain acids react metals to cause chemical changes.? (3)They reacted strongly the unreasonable rules.
Acids dissolve in water, form a dilute solution and produce heat. So, while making a dilute solution of an acid, always add acid to water slowly and never pour water on acid. All acids except nitric acid react with metals such as zinc, magnesium, iron, etc., to form salts and release...