1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrei [34K]
3 years ago
11

Why methylene blue is blue

Chemistry
1 answer:
bixtya [17]3 years ago
7 0

Methylene blue indicates the presence of oxidizing agents because it is oxidized itself by these compounds. When electrons are stripped from methylene blue, the resulting molecule imparts a blue color to the solution--giving a clear sign of a chemical change.

You might be interested in
Practice Problem #2 - Frank has an eraser with a mass of 10g and a volume
kobusy [5.1K]

Answer:

<h3>The answer is 0.67 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 10 g

volume = 15 cm³

We have

density =  \frac{10}{15}  =  \frac{2}{3}  \\  = 0.66666666...

We have the final answer as

<h3>0.67 g/cm³</h3>

Hope this helps you

4 0
3 years ago
Which of these statements is true?
frozen [14]
I think that it is B. because the others are most likely not true.
6 0
3 years ago
Read 2 more answers
How does matter affect mass?
romanna [79]

Answer:

c

Explanation:

the correct answer is (The more matter an object contains the more mass it may have.)

6 0
3 years ago
If the boiling points of two compounds differ by 60oC at atmospheric pressure, what will be the effect on the relationship by de
boyakko [2]

Answer:

It will lead to a decrease in the boiling points

Explanation:

Decreasing the pressure exerted on a compound reduces d boiling points because a high temperature is needed also to boil a compound

6 0
3 years ago
Which gas is the most abundant of the trace gases?
e-lub [12.9K]
Argon is the answer to the question
6 0
4 years ago
Other questions:
  • All of the following are forms of electromagnetic radiation except (3 points) visible light sound ultraviolet microwaves
    9·1 answer
  • A velocity vs time graph is a graph that shows the relationship between the velocity of an object over time___is plotted on the
    5·1 answer
  • Protons are positively charged particles and neutrons have no charge. On the other hand, electrons are negatively charged specie
    11·1 answer
  • How many liters of 4M solution can be made using 100 grams of lithium bromide
    6·1 answer
  • For a particular isomer of C 8 H 18 , the combustion reaction produces 5113.3 kJ of heat per mole of C 8 H 18 ( g ) consumed, un
    7·1 answer
  • Predict the aldol product when the following ketone undergoes self-condensation in the presence of NaOH. Do not show the dehydra
    11·1 answer
  • Predict the boiling point of water at a pressure of 1.5 atm.
    12·1 answer
  • NaOH + HCl → NaCl + H2O
    14·1 answer
  • Determine whether each observation describes a chemical or a physical property
    12·1 answer
  • How does direct current differ from<br> alternating current ?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!