What change will you observe if you test soap with litmus paper (red or blue)? View Solution What change will you observe if you test soap with litmus paper (red and blue)? View Solution What change do you obse
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. 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...
An acid is a chemical species that turns the color of the naturally occurring blue litmus paper into the red. In contrast, a base changes the color of red litmus paper into blue. Answer and Explanation:1 According to Arrhenius's definition, a base is a species that furnishes hydroxide ions...
Changing the indicator color from red to blue changes the color of the litmus paper. It can accept protons from proton donors. It contains OH− ions. Acids react vigorously with them. They are slippery to the touch. When dissolved in water, they conduct electricity. ...
Instead of pouring the substances into the cabbage water, you can also test the acidity by dipping litmus paper into the substance. We had someLitmus pH paper strips& color chart from aMagic School Bus science kit . However, you can also tell if it is an acid or base by the color it...
and it is neutral to litmus. Under sufficiently stirred with a magnetic stirrer, about 30ml 0.05mol/L disodium EDTA is added via a 50ml burette, adding 15ml sodium hydroxide solution and 300 mg hydroxy naphthol blue indicator, and continuing the titration to a blue endpoint. Per milliliter ...
How does a litmus paper help in a chemistry experiment? Why was phenolphthalein a good indicator to use for determining the equivalence point between the unknown weak acid and strong base? What is the color of a phenolphthalein indicator in an acidic solution? Wha...
Bases turn red litmus paper blue, have a bitter taste, and have a pH of greater than 7. Compare acid. 2. Mathematics a. The side or face of a geometric figure to which an altitude is or is thought to be drawn. The base can be, but is not always, the bottom part of the ...
Bases turn red litmus paper blue, have a bitter taste, and have a pH of greater than 7. Compare acid. 2. Mathematics a. The side or face of a geometric figure to which an altitude is or is thought to be drawn. The base can be, but is not always, the bottom part of the figur...