subject
Chemistry, 26.01.2020 13:31 roselyndiaz29

Which statement is true of phenolphthalein?
a. it can be used in combustion reactions.
b. it is colorless in the presence of an acid and pink in the presence of a base.
c. it gives you the exact ph of a solution.
d. it is colorless in the presence of a base and pink in the presence of an acid.
e. it is called a decomposition indicator.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 14:00
Acar tire has a pressure of 2.38 atm at 15.2 c. if the pressure inside reached 4.08 atm, the tire will explode. how hot would the tire have to get for this to happen? report the temperature in degrees celsius.
Answers: 2
question
Chemistry, 21.06.2019 19:00
In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy
Answers: 1
question
Chemistry, 22.06.2019 05:00
In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?
Answers: 1
question
Chemistry, 22.06.2019 11:20
Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.
Answers: 1
You know the right answer?
Which statement is true of phenolphthalein?
a. it can be used in combustion reactions.
...
Questions
question
English, 22.02.2021 21:10
question
Arts, 22.02.2021 21:10
question
Mathematics, 22.02.2021 21:10
Questions on the website: 13722359