A. paper B. pen C. ruler D. test tube 相关知识点: 试题来源: 解析 A。选项 B“pen”是笔,不能用来测试物质酸碱性;选项 C“ruler”是尺子,也不行;选项 D“test tube”是试管,是容器不是测试酸碱性的工具。而“paper”可以是 pH 试纸,用来测试物质酸碱性。反馈 收藏 ...
A. Voltmeter B. pH indicator C. Balance D. Ammeter 相关知识点: 试题来源: 解析 B。本题考查化学实验工具的使用。A 选项“Voltmeter”是电压表;C 选项“Balance”是天平;D 选项“Ammeter”是电流表。而检测物质是酸性还是碱性需要使用 pH 指示剂,B 选项“pH indicator”符合题意。反馈 收藏 ...
For testing if a substance is acidic or basic, which tool do we use, pH test paper or a thermometer? A. pH test paper B. Thermometer C. Both D. Neither 相关知识点: 试题来源: 解析 A。解析:pH 试纸用于检测物质的酸碱性,温度计用于测量温度。选项 B 温度计不能检测酸碱性;选项 C 两者不...
Is pOH 12 acidic? A basic solution has a pOH of less than 7, while an acidic solution has apOH of greater than 7. What is the pH of the pOH is 12? The correct answer is(b) 2. The pH scale is used to measure how acidic or basic a solution is. ...
Is Glucose Acidic or Basic?. Ans: Hint :Glucose has a molecular formula $ {{C}_{6}}{{H}_{12}}{{O}_{6}} $ and is a simple sugar. Glucose is the most common monosaccharide, a type of carbohydrate. Glucose is primarily produced by plants and most alga...
which is why you will find it inapplications ranging from laboratory reagents and industrial cleaning agentstonail polish removers and paint thinners. However, a commonquestionthat arises hereis whetheracetoneisacidic or basic. Well, to answer that, we need to visit its molecular structure.It has...
Next, test to see how acidic or basic the soil is, also called a pH test. In some countries, the tests are reasonably priced and easy to find. Some universities in the United States have agricultural offices offerin...
Is Phthalimide Acidic or Basic? Firstly, we need to understand the structure of Phthalimide. The Phthalimide molecule contains two imide groups. An imide is a compound that contains two acyl groups (Ar-C=O) and typically possesses a stable structure. Based on this structure, we can infer that...
Indicate whether the solution is acidic, basic, or neutral: {eq}\displaystyle \rm \left[ H_3O^+ \right]=5.30 \times 10^{-10} \ M, \ pH =2.22 {/eq}. Hydronium Ion: The hydronium ion is the ion of hydrogen and oxygen and it forms when a molecule of...
Let’s understand the nature of H3PO4 (acidic or basic) with the help of the above theories Arrhenius theory for acid: When H3PO4 is dissolved in water, it breaks down into two constituent ions, H2PO4‾ and H+. So, according to Arrhenius’s theory, it acts as an acid. ...