Answer:
Phenolphthalein is an acid indicator, which means when we add water (pH 7) to it, it ionizes giving a pink color. We all know acid gives in solution. When we add phenolphthalein to acid due to the common ion effect concentration increases. turned the solution pink.
Explanation:
The reaction that has the greatest tendency to be reversed in an spontaneous redox reaction is that whose forward standard reduction potential is the lowest (mos negative) one because that means that the reversed reaction will have the highest (most positive) standard reduction potential.
So, the answer is Cr(3+) + 3e- ---> Cr(s) with Eo = -0.91 V, whose reversed reaction is Cr(s) - 3e- ---> Cr (3+) with Eo = +0.91 V.
Answer: the second option Cr(3+) + 3e- ---> Cr(s) Eo = -0.91 V
I literally is 1000 ml. Therefor 1.2 literally is 1.2*1000 which is 1200 ml
Answer:
B. 10⁻⁶ m
Explanation:
Frequency is the inverse of period, which is correlated with its wavelength. In other words, the smallest wavelength will give you the highest frequency.
10⁻⁶ m is the smallest value in the answer choice so that's your answer.
