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
djyliett [7]
3 years ago
10

Adding luminol to water creates a physical or chemical change ​

Chemistry
2 answers:
faust18 [17]3 years ago
7 0
Answer: chemical

not 100% sure
xeze [42]3 years ago
3 0
Chemical the room also needs to be dark
You might be interested in
I don’t know if I’m right??
allochka39001 [22]

Answer:

what is this for? A-level..?!

Explanation:

3 0
3 years ago
Read 2 more answers
When the following redox equation is balanced with smallest whole number coefficients, the coefficient for nitrogen dioxide will
Phoenix [80]

In a redox reaction, electron could be lost or gained. The coefficients in the balanced redox reaction are;  1/2, 5, 1, 5, 2, 1.

<h3>What is a redox reaction equation?</h3>

A redox reaction equation shows the species that were oxidized or reduced in a redox reaction. In this case, we are asked for the coefficients in a balanced redox reaction equation.

We must recall that five electrons were lost/gained in the process hence the balanced reaction equation is;

1/2I2 + 5HNO3 -----> IO3^- + 5NO2 + 2H2O + H^+

The coefficients in the balanced equation therefore are; 1/2, 5, 1, 5, 2, 1.

Learn more about redox reaction: brainly.com/question/13293425

7 0
2 years ago
Read 2 more answers
What is a chemical bond?
nadezda [96]
The answer is A. the attraction between atoms that enables the formation of chemical compounds.
8 0
4 years ago
9. What is the process of nuclear fusion? *
Pavlova-9 [17]

Answer:

the process of carrying light

5 0
3 years ago
. A standard dry cell has an output voltage of A. 1.5 VDC. B. 1.1 VDC. C. 1.2 VDC. D. 2.0 VDC.
NikAS [45]
<span>The correct answer is letter A. 1.5 VDC. A standard dry cell has an output voltage of A. 1.5 VDC. Standard dry cell is a type of electricity-producing chemical cell, that is commonly use in households, and even portable devices. Dry cell is zinc-carbon cell and with nominal voltage of 1.5 volts.</span>
4 0
3 years ago
Other questions:
  • The size of a gas particle is negligibly small. The average kinetic energy of a particle is proportional to its temperature in k
    10·1 answer
  • He dissolution of gases in water is virtually always exothermic because __________. a gases react exothermically with water b th
    9·1 answer
  • Identify the atom<br> H₄<br> CH₄<br> N
    13·1 answer
  • Be sure to answer all parts.
    12·1 answer
  • Predict which of the following transition metal ions has a color Cr3+, Cd2+, Hg2+, V2+
    14·2 answers
  • Consider the reaction: P4 + 6Cl2 = 4PCl3.
    9·1 answer
  • The solubility of N2in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 × 10−4mol/L. A deep-sea diver breathes compres
    8·1 answer
  • How can I identify when the reaction is in equilibrium
    13·1 answer
  • Certain gases in the atmosphere trap heat on Earth.
    15·1 answer
  • How much arsenic does it take to kill a rat
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!