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
REY [17]
3 years ago
5

The number of electrons present in 4.2 gram of methane is​

Chemistry
1 answer:
jeka943 years ago
3 0

Answer:

Explanation:

One CH4 molecules = 10 electrons ( Carbon 6e + 4Hydrogen 4e)

A mole of any substance witll have = 6.023*10^23 atom/ molecuels,

One mole of any substnce is equal is nothing but its moalr mass

Molar mass of CH4 = 16.04

It mean,

16.04  g of CH4 has = 6.023*10^23 molecules of methane

but

4.2 gram of CH4   = 6.023*10^23 * 4.2 /16.04 = 1.58*10^23 molecuels of CH4

So one molecule has =10 electrons

1.58*10^23 molecuels will have = 1.58*10^23  * 10 = 1.58*10^24

Hope this help you

You might be interested in
what bonding is similar to ionic bonding, except there are no high-electronegativity atosms present to accept any electrons that
kenny6666 [7]

Answer:

Metallic bonding

Explanation:

Ionic bonding involves the transfer of electrons from a highly electropositive metal to a highly electronegative nonmetal.

The metallic bond is somewhat similar to the ionic bond since there are also charged positive metal ions. The only difference is that there isn't any electronegative element that accepts the electrons.

In a metallic bond, the positively charged metal ions are bound together by a sea of mobile electrons. The attractive force between the metal ions and the mobile electrons hold the metallic crystal lattice together.

3 0
3 years ago
Why might an idea or hypothesis be discarded?
miv72 [106K]

Answer:

A

Because That is the right choice

7 0
3 years ago
The Venn diagram describes a phase change from solid to gas phase between the areas marked
balu736 [363]
I believe the answer would be A and C
8 0
3 years ago
Which of the following statements about energy and trophic levels is not true? a. The amount of available energy decreases at ea
Zarrin [17]
The correct answer is d
4 0
3 years ago
Read 2 more answers
How can the conductivity of a salt solution be decreased?
Musya8 [376]

Answer:

B. Add more water to decrease the concentration.

Explanation:

If we add more water to the solution, the concentration is decreased and like wise the conductivity of the solution.

  • Concentration is the amount of solute in a solution.
  • Conductivity deals with the ability of a solution to allow the passage of current.

Concentration and conductivity are directly proportional to one another. The higher the concentration, the higher the conductivity and vice versa.

  • Adding more water increases the amount of solvent and the concentration reduces.
4 0
3 years ago
Other questions:
  • What is the formula mass of silver
    5·1 answer
  • Using the chemical equation in Question 1 above, if 42.6 g of H2 reacts in excess nitrogen gas and the actual yield of NH3 was 2
    15·2 answers
  • PLEASE HELP ASAP!<br><br><br> what are the products of radioactive decay?
    7·1 answer
  • How to Calculate the percentage of compound ?
    8·1 answer
  • What is a level 7-8 grade science fair project I can do?
    8·1 answer
  • A student looks through a microscope and sees a dark spot. Upon moving the slide he notices that the dark spot does not move. In
    13·1 answer
  • Is it a plant or animal cell?
    6·1 answer
  • How are electromagnets temporary?
    12·2 answers
  • What is the mass of 1.7 moles of strontium hydroxide?
    6·1 answer
  • Which of the following ionic formulas is INCORRECT?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!