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
sammy [17]
3 years ago
7

If a sample of a substance contains 9.03 x 1023 representative particles, how many moles does this represent?

Chemistry
1 answer:
GaryK [48]3 years ago
5 0
I believe its 10^23 u r saying
then no. of moles= 9.03*10^23/6.02*10^23=1.5mole
You might be interested in
What neutral element has 17 electrons an 18 neutrons?
pishuonlain [190]

Answer:

chlorine atom

A chlorine atom has 17 protons, 18 neutrons, and 17 electrons.

Explanation:

4 0
2 years ago
Read 2 more answers
A + B = AB
Ahat [919]

The greatest amount of AB would be produced if the equilibrium constant of the reaction is equal to 1.0 \;X \;10^5. Hence, option D is correct.

<h3>What is an equilibrium constant?</h3>

A number that expresses the relationship between the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a given temperature.

The equilibrium constant expression is a mathematical relationship that shows how the concentrations of the products vary with the concentration of the reactants.

If the value of K is greater than 1, the products in the reaction are favoured. If the value of K is less than 1, the reactants in the reaction are favoured.

Hence, option D is correct.

Learn more about the equilibrium constant here:

brainly.com/question/10038290

#SPJ1

7 0
2 years ago
Which of the following chemicals effects blood pressure for both the short and long term?
andriy [413]
The chemical that effects blood pressure for both the short and long term is Angiotensin II

8 0
3 years ago
Describe how the molecular structures of alkenes and alkynes differ from the structure of alkanes
evablogger [386]

Alkanes are saturated hydrocarbon that contains only single bonds, whereas Alkenes and Alkynes are unsaturated hydrocarbons which contain one or more double bond and triple bonds.

<u>Explanation:</u>

  • A saturated hydrocarbon with an only single bond is called alkanes. Ethane consisting of two carbon atoms that are bonded with a single bond and six hydrogen atoms sharing the other valence electron of carbon atoms. The molecular structure of alkane is CnH2n+2.
  • An unsaturated hydrocarbon with a two bond is called alkenes. Ethene consisting of two carbon atoms double-bonded to each other. The molecular structure of alkene is CnH2n.
  • An unsaturated hydrocarbon with a triple bond is called as alkynes. It involves sharing three pairs of electrons. The molecular structure of alkyne is CnH2n-2.
4 0
3 years ago
What are some properties of matter that can be identified without testing or measuring
kiruha [24]
Physical change - No change of matter in this phase
chemical change - All types of phase change occur here
8 0
3 years ago
Other questions:
  • What is the expected number of valence electrons in an atom of the element flerovium in ground state
    12·1 answer
  • You need 1.2 moles of H2SO4 for an experiment. You weigh out 100g of this colorless syrupy liquid. Do you have enough?
    7·1 answer
  • How many objects in the solar system have been confirmed to currently support life?
    7·2 answers
  • What is a periodic element that is named after Einstein?
    11·2 answers
  • What type of bond would occur between lithium (Li) and oxygen (O)?
    6·1 answer
  • What is a change in the arrangement of bases in a gene called?????
    14·2 answers
  • Calculate the change in temperature that occurs when 3.50 x 10^-2kg of copper heated by 635 J of energy. Ccu = 0.385 j/gxC
    10·2 answers
  • in 4 season countries, the temperatire may drop till below 0°c during the peak of winter. why does the surface of the river or l
    5·1 answer
  • What is the frequency of a photon that has 3.82 x 10^-20 J of energy? ​
    6·1 answer
  • Is this soulution acidic or basic <br><br> Ph= 12<br><br> Basic <br><br> Acidic
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!