What can bases turn red litmus paper into? A. Red B. Blue C. Green D. Yellow 相关知识点: 试题来源: 解析 B。解析:文中提到 Bases, on the other hand, taste bitter and feel slippery. They can turn red litmus paper blue. 碱尝起来是苦的,摸起来很滑,能使红色石蕊试纸变蓝。
When we do an experiment with lemon juice and litmus paper, what will happen to the litmus paper? A. It will turn blue B. It will turn red C. It will turn black D. It will not change color 相关知识点: 试题来源: 解析 B。解析:柠檬汁是酸性物质。石蕊试纸(litmus paper)遇酸性物质会...
A. To make the solutions colorful. B. To test the acidity or basicity of the solutions. C. To add more substances to the reaction. D. To make the E. xperiment more F. un. 相关知识点: 试题来源: 解析 B。解析:在实验中,用石蕊试纸是为了测试溶液的酸性或碱性。反馈...
A. Feels slippery B. Turns litmus paper red C. Does not react with acids D. Has a sour taste 相关知识点: 试题来源: 解析 A。本题考查碱的性质。碱摸起来滑滑的,A 正确;碱能使石蕊试纸变蓝,不是变红,B 错误;碱能和酸反应,C 错误;碱尝起来是涩的,不是酸的,D 错误。反馈...
Red Litmus Paper When red litmus paper is placed into a basic substance, it will turn blue. If it comes in contact with an acidic or neutral substance, it will remain red. Red litmus paper is meant to test only for an alkaline pH level. Common acids include include tartar sauce, corn,...
36、What color does litmus paper turn when dipped into acid? A、Blue B、Yellow C、Brown D、Red Answer:D 37、Who lived at 1313 Mockingbird Lane? A、The Addams Family B、The Partridge Family C、The Munsters D、Elmo Answer:C 38、Who is considered to be the Father of History?
Red Litmus Paper Properties Litmus paper is made from wood cellulose that is infused with an aqueous solution consisting primarily of lichens. During the production of red litmus paper, the lichens are left to ferment in potassium carbonate, ammonia, and a small amount of sulfuric or hydrochloric...
If red litmus paper turns blue in the substance, what does it mean? What are the principles/techniques involved in double-indicator titration? especially in carbonate mixtures. Why is potassium permanganate colored? Based on how the indicator phenolphthalein worked in Lab III, explain why the golde...
Litmus paper turns red on contact with an acid Reach (transitive) To attain or obtain by stretching forth the hand; to extend some part of the body, or something held, so as to touch, strike, grasp, etc. To reach an object with the hand, or with a spear “I can't quite reach th...
A. Tastes sweet B. Turns litmus paper blue C. Reacts with metals to produce hydrogen gas D. Has no E. ffect on indicators 相关知识点: 试题来源: 解析 C。本题考查酸的性质。酸尝起来是酸的,不是甜的,A 错误;酸能使石蕊试纸变红,不是变蓝,B 错误;酸能和金属反应产生氢气,C 正确;酸对指...