litmus,litmus test- a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator paper- a material made of cellulose pulp derived mainly from wood or rags or certain grasses ...
litmus paper n.unsized paper treated with litmus for use as an acid-base indicator 学习怎么用 双语例句 用作名词(n.) Litmus paper turns red in the presence of an acid. 石蕊试纸遇到酸就变红。 We test the liquid for acidity with a strip of litmus paper. ...
Litmus paper turns red in the presence of an acid.───石蕊试纸遇到酸就变红。 the form of a water solution or aslitmus paper, it is the oldest and most-used indicator of whether a substance is an acid or a Base.───的水溶液,或者做成石蕊纸后,是最古老和最常用的指示剂,可以指示一种...
The substance that turns litmus paper red is ___. A. acid B. base C. neutral solution D. salt solution 相关知识点: 试题来源: 解析 A。能使石蕊试纸变红的物质是酸。选项 B 是碱;选项 C 是中性溶液;选项 D 是盐溶液。只有酸能使石蕊变红。反馈...
litmus paper 英[ˈlɪtməs ˈpeipə] 美[ˈlɪtməs ˈpeɪpər] 释义 石蕊试纸 实用场景例句 全部 Litmus papercan be used as an indicator of the presence of acid in a solution. 石蕊试纸可用以测试溶液是否含酸.
A. acid B. base C. salt D. water 相关知识点: 试题来源: 解析 B。原因:“For example, litmus paper can turn from red to blue in the presence of a base and from blue to red in the presence of an acid.”。 反馈 收藏
The substance that turns litmus paper red is___. A. an acid B. a base C. water D. salt 相关知识点: 试题来源: 解析 A。能使石蕊试纸变红的是酸。选项 B 碱使石蕊试纸变蓝;选项 C 水一般不会使石蕊试纸变色;选项 D 盐通常也不会使石蕊试纸变红。反馈...
paper milln. 造纸厂 paper cuts剪纸 rock paper scissors石头剪刀布【一种猜拳游戏】(a hand game usually played by two people, where players simultaneously form one of th 最新单词 best bet是什么意思最佳抉择,最稳妥的办法 beside the subject in hand是什么意思离题,与议题无关 ...
litmus paper 是什么意思 中文翻译与英英解释 【化学】石蕊试纸。 litmus: n. 【化学】石蕊。 adj. -less 中性的。 paper: n. 1.纸;裱墙纸。 2.报纸,报。 3.收据;债券; ... unsized paper treated with litmus for use as an acid-base indicator 例句与用法 1. Litmus paper turns red on ...
Litmuspaper can be used as an indicator of the presence of acid in a solution. 石蕊试纸可用以测试溶液是否含酸. 辞典例句 They turn bluelitmuspaper red. 他们把蓝色石蕊试纸变红. 期刊摘选 Ammonia gas NH 3 is colorless which can turn wet redlitmuspaper to blue. ...