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Vinvika [58]
3 years ago
7

Explain the relationship between isotopes, neutrons, atomic mass, and protons.

Chemistry
2 answers:
romanna [79]3 years ago
6 0

Answer:

Atomic mass is the total of number of protons and number of neutrons in an atom or isotope.

Explanation:

Triss [41]3 years ago
5 0

Explanation:

<u>Atomic mass</u>: The sum of no. of protons and no. of neutrons

<u>Protons</u>: a subatomic particle with a positive charge

<u>Neutron</u>: a subatomic particle with no charge (neutral)

<u>Isotopes: </u>the same elements with different atomic mass [Eg. uranium-235, uranium-238. Uranium being one element, can have different mass numbers. Hence Uranium-238 is an isotope of Uranium-235]

<u>Therefore</u>:

<h3>Proton + neutrons= Atomic mass</h3><h3>Δatomic mass= formation of isotopes. </h3>

<em>*Δ= Change in</em>

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How many hydrogen atoms are in a cycloalkane with 8 carbon atoms?
frosja888 [35]
Cycloalkanes are those saturated organic compounds which exist in the form of Rings. Their Hydrogen Deficiency Index in one. The General formula for cycloalkanes is,
                                                  CnH2n
When number of Carbons = 8
Then
                                                  C₈H₂₍₈₎

                                                  C₈H₁₆

Result:
           
Cycloalkane containing 8 carbon atoms has 16 hydrogen atoms.

8 0
3 years ago
You have a 25.2 L sample of gas at 1.25 atm and 25.0 degrees Celsius. How many moles are present in this gas. For your answer, p
Elenna [48]

Answer:

  • <u>1.29 mol</u>

Explanation:

This is a direct application of the equation for ideal gases.

  • PV=nRT

Where:

  • P = pressure = 1.25 atm
  • V = volume = 25.2 liter
  • R = Universal constant of gases = 0.08206 atm-liter/K-mol
  • T = absolute temperature = 25.0ºC = 25 + 273.15 K = 298.15 K
  • n = number of moles

Solving for n:

  • n=\frac{PV}{RT}

Substituting:

n=\frac{1.25atm\times 25.2liter}{0.08206atm-liter/K-mol\times298.15K }\\\\n=1.29mol

8 0
3 years ago
Which contains more hydrogen atoms? a five-carbon saturated hydrocarbon molecule or a five-carbon unsaturated hydrocarbon molecu
Studentka2010 [4]

The organic compound which contains more hydrogen atoms is a five-carbon saturated hydrocarbon molecule

<h3>What are organic compounds?</h3>

Organic compounds are compounds are those compounds containing carbon and hydrogen only.

Some classes of organic compounds are:

  • Alkanes
  • Alkenes
  • Alkynes

So therefore, the organic compound which contains more hydrogen atoms is a five-carbon saturated hydrocarbon molecule

Learn more about organic compounds:

brainly.com/question/1594044

#SPJ1

4 0
1 year ago
How does a phase change from solid to liquid occur in a substance?
Alex

Answer:

see below

Explanation:

1. Heat energy is added to the substance, weakening the electrical attraction between molecules.

2. Both the melting point and boiling point are lower.

3. dipole

4. Water and ethanol have different molecular structures.

5. The lone pairs of electrons in the oxygen atom causes the molecule to be bent; the oxygen atom has a partial negative charge, while the hydrogen atoms have partial positive charges.

[quizlet: captncrun]

4 0
2 years ago
Write a balanced chemical equation for the neutralization reaction between phosphoric acid and lithium hydroxide.
Akimi4 [234]
Hope that helps!!!!!!!

5 0
2 years ago
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