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
Georgia [21]
3 years ago
10

What does promoters in chemical reaction improve ​

Chemistry
1 answer:
dolphi86 [110]3 years ago
7 0

Answer:

Promoter, in chemistry, substance added to a solid catalyst to improve its performance in a chemical reaction. By itself the promoter has little or no catalytic effect. Some promoters interact with active components of catalysts and thereby alter their chemical effect on the catalyzed substance.

Explanation:

You might be interested in
Which Locations are likely to have subatomic particles with the GREATEST mass?
wlad13 [49]

2 and 3, because there are the protons and neutrons which have a greater mass than the electrons which are found in the locations 1 and 4.

Explanation:

The atom contains a nucleus, which is made from protons and neutrons, and electrons which are found around the nucleus.

The mass of the atoms is concentrated in the very tiny space represented by the nucleus. Of course the electrons have a mass too, but is very small compared to the protons and neutrons, and we usually neglect its mass.

Learn more about:

subatomic particles

brainly.com/question/7221719

brainly.com/question/1527888

#learnwithBrainly

8 0
4 years ago
Read 2 more answers
naturally as mixtures of two abundant isotopes. Chlorine occurs as 35Cl (75.8%) and 37Cl (24.2%); Bromine occurs as 79Br (50.7%)
anyanavicka [17]

Answer:

Masses of bromobenzene molecular ions will occur at 156 and 158 m/z.

Explanation:

The molecular ion peak is the signal in the mass spectrum of a compound that represents the molecular ion (denoted as M). Compounds that are composed of atoms having abundant isotope also shows M +1 and M+2 peaks (depending on the isotope).

In the given bromobenzene compound, an atom of bromine is present. The two isotopes with considerable relative abundance of Br are 79Br and 81Br with a difference of two units in their mass. This means that two molecular ion peaks with a difference of two units will appear in the mass spectrum. The mass of the whole compound is 156 amu. Hence, the molecular ion peaks will appear at 156 m/z and 158 m/z due to the two isotopes of bromine.

6 0
4 years ago
Which kingdom is completely composed of unicellular organisms that are prokaryotic?
gogolik [260]

A.                                                                 Can you help me with this

 

I.   The diagonals of a square are perpendicular.

II.  The diagonals of a rhombus are perpendicular.

III. The diagonals of a rectangle are perpendicular.

Which of the above statements are true?

A)I.II.III

B)None of the above statements are true.

C) only I

D)I.III

8 0
3 years ago
During a phase change, the temperature of a substance _____.
adell [148]

Answer: remains constant.


Justification:


1) The phase changes are:


i) Boiling: pass from liquid to gas (absorbs heat energy)

ii) Condensation: pass from gas to liquid (release heat energy)

iii) Melting: pass from solid to liquid (absorb heat energy)

iv) Freezing: pass from liquid to solid (release heat energy)

v) Sublimation: pass from solid to gas (absorbs heat energy)

vii) Deposition: pass from gas to solid (release heat energy)


2) When a phase change occurs, whichever it is, the heat energy related with the process, either absortion or release, is used, to overcome the intermolecular forces (in the case of heat energy absortion) or to create stronger intermolecular forces (in the case of heat energy release).


Because of that, the heat energy exchange does not change the temperature of the substance.

8 0
3 years ago
Read 2 more answers
Which of these solutes raises the boiling point of water the most?
Murljashka [212]

Answer:

D. ionic sodium phosphate (Na3PO4)

Explanation:

8 0
3 years ago
Other questions:
  • Explain why raising the temperature of a liquid would speed up diffusion
    12·1 answer
  • A sample of an unknown compound is vaporized at 170 C. The gas produced has a volume of 1980 ml at a pressure of 1 atm, and it w
    11·1 answer
  • Which of the following generally results when the Senate and the House of Representatives pass different versions of the same bi
    15·1 answer
  • How science classified?<br> any additional answer please thanks
    12·1 answer
  • What is group 3-12 on the piratic table
    7·1 answer
  • How does heat flow in air and ocean currents
    9·2 answers
  • Why does Fluorine have a higher electronegativity than Carbon? ​
    13·1 answer
  • True or false the stomach is made of strong muscles that mix the food with digestive juices.
    10·2 answers
  • Brainliest fast before 5:35 no link no bot
    10·1 answer
  • in an aerosol spray can with a volume of 456 ml contains is 3.18g of propane gas as a propellant If the can is at 23° C and 50 A
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!