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MrMuchimi
1 year ago
14

Lennard-jones potential diagrams, also called intermolecular potential energy diagrams, illustrate the relationship between the

potential energy of a molecule as the distance between the two nuclei changes.
Select all of the true statements regarding Lennard-Jones potential diagrams.

Chemistry
1 answer:
amm18121 year ago
7 0

Statement 3, 5 and 6 are true statements regarding Lennard-Jones potential diagrams

What is lennard- jones potential diagrams

  • It describes potential energy of interaction between two non-bonding atoms or molecules based on their distance of separation.
  • It illustrates the relationship between potential energy of a molecule as the distance between the two nuclei changes.

Statement 3 ,5 and 6 are correct statements

  • When attractive forces are greater than repulsive forces, the two nuclei will continue to come closer.
  • When attractive forces are smaller than repulsive forces, the two nuclei will continue to go farther.
  • Once a balance is found between attractive and repulsive forces, an equilibrium distance called bond length is achieved.

Learn more about lennard- jones potential diagrams at brainly.com/question/13348153

#SPJ13

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Consider the reaction of 35.0 g of iron as follows:
77julia77 [94]

Explanation:

4Fe + 3O2 --> 2Fe2O3

Mass of  iron = 35g

<em>How many moles of iron react?</em>

The relationship between mass and moles is given as;

Moles = mass /  Molar mass

Molar mass of iron = 56g/mol

Number of moles = 35 / 56 = 0.625 mol

<em>How many moles of oxygen molecules must react?</em>

From the equation of the reaction;

4 mol of Fe reacts with 3 mol of Oxygen molecule

0.625 mol would react with x mol?

4 = 3

0.625 = x

x = 0.625 * 3 / 4 = 0.46875 mol

<em>How many moles of product form?</em>

From the equation of the reaction;

4 mol of Fe reacts to form 2 mol of Fe2O3

0.625 mol would form x mol of Fe2O3

4 = 2

0.625 = x

x = 0.625 * 2 / 4 = 0.3125 mol

<em>What mass of product forms?</em>

Moles = mass /  Molar mass

Mass = Molar mass * Moles = 159.69 g/mol * 0.3125 mol = 49.9g

8 0
3 years ago
How many significant figures are in 0.0034 cm? a 2 b 3 c 1 d 4
Annette [7]

Answer:

A. 2 sig figs

Explanation:

In the number 0.0034, the zeros are called leading zeros. The only function of leading zeros is to fix the decimal point. Leading zeros are not counted as significant figures.

8 0
4 years ago
How does the structure of amino acids allow them to form a polypeptide
melamori03 [73]
<span>Amino acids which are known to be linked by peptide bonds they form polypeptide chains.

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7 0
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Ecologists use food web diagrams, like the one shown, as tools in their studies of different populations of organisms within an
Mice21 [21]

Ecologists use food web diagrams as tools in their studies of different populations of organisms within an ecosystem because it shows the feeding relationship between organisms in the ecosystem.

<h3>What is a Food web?</h3>

This is defined as the graphical representation of the feeding relationship which occurs between organisms in the ecosystem and helps to predict the outcome in the addition or removal of a species.

The food web also helps to determine the various ways in which energy flows and it usually starts from the producers which are the plants as a result of their photosynthetic ability which involves the conversion of solar energy to chemical energy.

There are various organisms in the ecosystem and the food web helps to provide a better understanding of their feeding habits and impact various factors will result in.

Read more about Food web here brainly.com/question/4656320

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4 0
1 year ago
Which statement about bases is incorrect? Select one: a. All bases contain hydroxide ions. b. All bases taste bitter. c. All bas
NemiM [27]

Answer

a

Explanation:

While the Arrhenius definition of a base agrees with this statement, the Bronsted-Lowry and Lewis definitions don't. Under Bronsted-Lowry, a base is anything that can accept a proton (ex// NH3). Under lewis, it is anything that can donate an electron (ex// Cl-).

Bases are usually bitter and turn red litmus paper blue, and are slippery.

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