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
Aleonysh [2.5K]
3 years ago
7

how many moles of water are in 1.23 x 10^18 water molecules? I need the answer in scientific notation ?

Chemistry
1 answer:
Ann [662]3 years ago
8 0

Answer:

Moles=2.04×10^(-6)

Explanation:

No. Of moles=no. Of particles/ Avogadro's no

(Where no. Of particles may be atoms molecules or compounds)

Moles=1.23×10^18/6.022×10^23

Moles=0.204×10^(-5)

Moles=2.04×10^(-6)

You might be interested in
What are some differences between Boiling & Evaporation?
Angelina_Jolie [31]
Boiling happens much faster! Boiling also takes place at the bottom of the fluid whereas evaporation takes place at the top.


Hope this helps!

3 0
3 years ago
Read 2 more answers
Example of false solutions and true solutions <br>​
Kamila [148]

Answer:

answer in expl.

Explanation:

example of false solution.- Earth is not square

true eg. - we live in earth

3 0
3 years ago
What is the product of a force and the time during which the force acts
ELEN [110]

Impulse is the product of a force and the time during which that force acts on a body.

7 0
3 years ago
Which of the following has no electrons? Use a periodic table. Question 1 options: H He H– He 2+ Save
Elodia [21]

An electron is a negatively charged subatomic particle present in the space outside the nucleus of an atom. The loss of electron from an atom results in the formation of cation whereas gaining of electron by an atom results in the formation of anion. The cation possesses positive charge due to loss of electron and anion possesses negative charge due to gain of electron.

The neutral atom has no charge on it.

For given atomic symbols:

  • H

The atomic number of hydrogen is 1 and the given symbol has no charge that means it is in its neutral state. So, the number of electrons in H is 1.

  • He

The atomic number of helium is 2 and the given symbol has no charge that means it is in its neutral state. So, the number of electrons in He is 2.

  • H^{-}

The atomic number of hydrogen is 1 and the given symbol has a negative charge that represents a gain of electron. So, the number of electrons in H^{-} is 2.

  • He^{2+}

The atomic number of helium is 2 and the given symbol has two positive charge that represents loss of two electrons. So, the number of electrons in He^{2+} is 0.

Hence, He^{2+} has no electrons.

6 0
3 years ago
Which of the following a true statement about igneous rocks?
Marta_Voda [28]

Answer:

i think the answer is A....

Explanation:

Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.

8 0
2 years ago
Other questions:
  • At what temperature would 0.500 moles of gas particles stored in a 100.0 mL container reach a pressure of 15.0 atm?
    6·2 answers
  • Papa bless
    8·2 answers
  • Which of the following is an exothermatic reaction
    14·1 answer
  • HELP!!
    9·1 answer
  • When two substances are mixed and light is produced is it a chemical or physical change?
    8·2 answers
  • Calcium forms ions with a charge of +2. Iodine forms ions with a charge of -1. Which of the following would represent an ionic c
    9·1 answer
  • A sample of a compound containing only carbon and hydrogen was burned to produce 1.36g of water and 5.22g of carbon dioxide. Cal
    15·1 answer
  • Collision theory states that as molecules or ions bump into each other, a reaction will only occur if the collision has the corr
    9·1 answer
  • Hiiiiiiiiiiii peopleeeee
    11·2 answers
  • What are the building blocks of all matter that cannot be broken down any further into other substances?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!