百度试题 结果1 题目Before the reaction, what color did the acid solution turn blue litmus paper? A. Blue. B. Red. C. Green. D. Yellow. 相关知识点: 试题来源: 解析 B。解析:实验前,酸性溶液使蓝色石蕊试纸变红。反馈 收藏
What color do you predict phenolphthalein turn when added to 10 ml of 2 M HCl? If a solution turns blue litmus paper red, what type of solution is it? Acids and bases: a. can change the color of plant-based dyes b. ionize in water c. have neutral pHs d. both a ...
Red litmus paper, pH value color change range: 4.5 (red) ~ 8.0 (blue)|红石蕊试纸, PH值变色范围:4.5(红色)~8.0(蓝色) 基本信息更多信息 中文名称:红石蕊试纸, PH值变色范围:4.5(红色)~8.0(蓝色) 中文同义词:红石蕊试纸, PH值变色范围:4.5(红色)~8.0(蓝色) ...
Apply the substance you are testing to your litmus paper. Red litmus paper is used to detect a base and will turn blue. Blue litmus paper will detect acid and turn red. Apply the substance you are testing to a hydrion paper tester. Hydrion papers can detect a range of pHs. The smaller...
Blue litmus paper, pH value color change range: 8.0 (blue) ~ 4.5 (red)|蓝石蕊试纸, PH值变色范围:8.0(蓝色)~4.5(红色) 基本信息 更多信息 中文名称: 蓝石蕊试纸, PH值变色范围:8.0(蓝色)~4.5(红色) 中文同义词: 蓝石蕊试纸, PH值变色范围:8.0(蓝色)~4.5(红色) 英文名称: Blue litmus paper, ...