What is an intermolecular force?
O A. A force within a covalently bonded molecule
B. A force acting between the atoms within a molecule
O c. A force that holds a molecule together
O D. A force acting between two different molecules

Answers

Answer 1

Intermolecular force is the force acting between two different molecules. There are various kinds of intermolecular forces and the they differ in their strength.

What are intermolecular forces?

Intermolecular forces are force of attraction or repulsion acting between two different molecules in a compound. The like charges of molecules repels and unlike charges will attracts together.

There are different kinds of intermolecular forces such as hydrogen bonding, Van der Waal's forces, dipole, dipole forces, London dispersion forces etc.

The strength of these forces vary from each other. The intermolecular force of attraction holds tow molecules together in a compound. Hence, option D is correct.

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Related Questions

A balloon is a sphere with a radius of 5.0 m. The force of air against the walls of the balloon is 45 N.

What is the air pressure inside the balloon?

Surface area = 12.56 × radius²

1 Pa = 1 N/m²

How would one solve this? What is an easy way to remember how to solve this problem or a list of steps to solve?

Answers

Answer:

1.4 x 10^-1 Pa

Explanation:

answer is above

Structural differences between different chemicals can be represented in models of the particles. Which drawing best represents a compound?

Answers

Answer:

this is about that.

Answer:

C.

Explanation:

Elements in group 16 of the periodic table usually

Answers

Answer:

The oxygen family, also know as the chalcogens, consists of the elements found in Group 16 of the periodic table and is the main group elements.

Elements: oxygen, sulfur, selenium, tellurium and polonium.

Hope this helps! :D

A chemist is studying an unknown substance. He can break it into its elemental components only by using chemical means.

Based on this observation, how should the unknown substance be classified?
impure substance
solution
mixture
pure substance

Answers

Answer:

C, Mixture

Explanation:

Answer:

the correct answer is actually D pure substance

Explanation:

6. How is energy transferred to the earth?I

Answers

Answer:

Energy is transferred between the earths surface and atmosphere.Energy move place to place

Na + HCI → H2 + NaCl​

Answers

Answer: 2Na + 2HCl —> H2 + 2NaCl

A science teacher heated liquid ethanol for an experiment. When he turned up the temperature, the ethanol quickly disappeared, and a strong aroma filled the room. What happened to the ethanol?

Answers

Answer:

Heating the particles in the ethanol energized them, and they escaped to fill the room as a gas

Explanation:

Ethanol reacted and bonded with the gases in the air and so after heating the ethanol ,it quickly disappeared and a strong aroma was filled in the room .

What do you mean by ethanol  ?

Ethanol is a primary alcohol that is ethane in which one of the hydrogens is substituted by a hydroxy group.

Ethanol is an important industrial chemical; it is used as a solvent, in the synthesis of other organic chemicals.

Ethanol produced either by fermentation or by synthesis is obtained as a dilute aqueous solution and must be concentrated by fractional distillation.

Ethanol reacted and bonded with the gases in the air and so after heating the ethanol ,it quickly disappeared and a strong aroma was filled in the room .

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Which statement best describes a physical change?

Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Answers

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

im smart

A basketball weighs approximately 1.35 kg. What is this mass in grams (g)?

step by step

Answers

Answer:

1350 g

Explanation: just add a 0

The number of protons in an element can be found by looking at the
symbol
atomic number
O average atomic mass
O name

Answers

Answer:

atomic number if it's a answer

Answer:

I think its the average atomic mass.

Explanation:

How many atoks are in each element sampke? 16.5 g Sr, 26.5 g Fe, 7.73 g Bi, 36.4 g P​

Answers

Answer:

16.5gm of Sr(strontium) has 1.12 x10^23 atoms...26.5 gm of Fe(iron) has 2.84 x10^23.... 7.73 gm of Bismuth has 2.22 x10^22.....36.4gm of  Phosphorus has 7.06 x10^23

Explanation:

by the formula,

                          Moles=[tex]\frac{no of atoms}{Avogadro's No}[/tex]

you could find moles by

                                      Moles = given mass/atomic mass

Put the value of moles and multiply it by Avogadro's no you will get the following answers

Which of the following is always involved in a scientific inquiry? A. conducting experiments based on scientific questions B. guessing what would happen instead of doing experiments C. knowing the correct answer before you start D. conducting surveys to ask people's opinions on various subjects​

Answers

Answer:

I'm pretty sure it's a I'd its wrong I'm sorry

Answer:

developing solutions to questions through scientific research

Explanation:

Scientific inquiry involves coming up with questions based on observation and reasoning, conducting experiments based on scientific questions,and developing solutions to questions through scientific research.

The Periodic Table of elements is arranged by:
O atomic mass
O number of neutrons
O number of electrons
O atomic number

Answers

Answer:

atomic number

Explanation:

Answer:

number of electrons and number of neutrons

what is extremely lightweight and exists in a cloud orbiting the nucleus

Answers

Answer:

atomic particles

Explanation:

electrons are extremely lightweight and exist in a cloud orbiting the nucleus period the electron cloud has a radius 10,000 times greater than the nucleus according to the Los Alamos national laboratory.

Electrons is the answer. Hope that helped

Which roller coaster
car has the least potential energy due to gravity

Answers

Answer:

the roller coaster car with the least potential energy would be the one at the bottom of the roller coaster

Explanation:

Hope this helped

what do you think would be a good science fair project for an 8th grade advanced class?​

Answers

Answer:

maybe something about planets or the solar system and they have to make them

Explanation:

Answer:

create a rainbow of flames or build an infinty mirror

Explanation:

What is a Physical reaction?

Answers

a reaction to something physical

Science investigation skills

(I need to have 5 answers )


Answer 1.

Predict



Answer 2.

Use variable


Answer 3.

Plan and conduct investigations

Answer 4.
Draw conclusions


Answer 5.

Hypothesize


Answer 6.

Measure


Answer 7.

Classify and order




Answer 8.

Record and display data


Answer 9.

Use time and space relationships




Answer 10.

Use numbers

Answers

Answer:

Explanation:

-------Choices  ---------------

Predict

Use variable

Plan and conduct investigations

Hypothesize

Measure

Classify and order

Record and display data

Use time and space relationships

Use numbers

=================

Selection:

These are in approximate order:

Hypothesize:  Build an explanation of the observation.  The hypothesis should be done after a thorough review of existing information.  Library database searches and researcher interviews are suggested.Predict:  prediction of what would happen if the explanation were correct.  E.g., If an atom is homogenous and has no internal structure, then bombarding it with with neutrons will result in most neutrons going right through the atom, and none would be reflected backwards.

Plan and conduct investigations:  Design experiments that test the hypothesis.  E.g., see if any neutrons are reflected backwards.  If they are, the hypothesis needs to be changed.

Measure:  Do the work.  Calibrate the equipment and record everything.

Record and display data:  Publish the results and conclusions for peer review.  Seek other's input in order to generate general agreement that the data, procedure, and conclusions are warranted.

===

Use numbers?  Nah.  Not if they are not required to reach a conclusion.(e.g., the precipitate will be pink or the reaction will stink).

Use Time and Space Relationships:  Yes, but only if the hypothesis depends on them.

Classify and Order:  OK, especially if you are a biologist, but not always necessary.

Use variable:  usually, but what and how depends on the experiment.

Blame:  Place blame on the lab partner (Just kidding).

Identify and give an example of at least two molecular properties that could be used to separate a substance from a mixture.

Answers

Answer:

Two molecular properties that could be used to separate a substance from a mixture are - Filtration and Chromatography .

Explanation

Molecular property -Molecular properties include the chemical properties, physical properties, and structural properties of molecules, including medicines. Typically, molecular properties do not include a chemical compound's pharmacological or biological properties.

Filtration -: Using a filter medium that allows the fluid to move through but not the solid, filtration is a method used to distinguish solids from liquids or gases. The term 'filtration' refers whether the filter is mechanical, chemical, or physical. The filtrate is considered the fluid that flows through the filter. A surface filter, which is a solid that traps solid particles, or a depth filter, which is a bed of material that traps the solid, may be the filter medium.

Usually, filtration is an imperfect operation. On the feed side of the filter or embedded in the filter media, some fluid remains and some tiny solid particles make their way through the filter.

example - Filters containing fibers that trap particulates are used by many aquariums.

Chromatography -: A laboratory method for the isolation of a mixture is chromatography. The mixture is dissolved in a fluid called the mobile phase (gas, solvent, water) that carries it through a device (a column, a capillary tube, a plate, or a sheet) on which a material called the stationary phase is fixed. For the stationary step, the different constituents of the mixture have different affinities.

Chromatography can be analytical or preparatory. Preparative chromatography is intended to isolate the components of a mixture for subsequent use and is therefore a method of purification. Analytical chromatography is usually conducted with smaller quantities of material and is intended to assess the presence of analytes in a mixture or to measure their relative proportions. Both are not limited to each other.

An example of chromatography is when a chemical reaction is used to separate each of the various sized molecules on a piece of paper in a liquid compound into their own pieces.

Hence , the answer is filtration and chromatography .

which 2 statements describe a mixture?
1. It includes atoms of different elements.
2. Its parts can be separated using physical means.
3. It can result from chemical bonding.
4. It is a pure substance.

Answers

Answer:

It's parts can be separated using physical means.It is a pure substance.

43. Why is the geometric structure of a molecule
important, especially for biological molecules?

Answers

Answer:

Structure is particularly important for biological molecules because a slight change in the structure of a large bio molecules like nucleic acids, proteins, enzymes, carbohydrates and lipid molecules can completely destroy its usefulness to a cell and may even change the cell from a normal one to a cancerous one.

Answer:

A slight change can change the molecule’s usefulness to the cell.

Explanation:

What effects do mutations have? Check all that apply.

Answers

A mutation in DNA can be dangerous if it is a deletion!! Hope this helps you out!!! Can u please mark me brainliest? Thanks!!! :)

Answer:

A,C,E,F

Explanation:

Pieces of inorganic or organic materials that come from rock and are
deposited by wind, water, or ice are called...


1.weathering
2. sediment
3.erosion
4.drought

Answers

Answer:

Sediment

Explanation:

PLEASE HELP I'LL GIVE U BRAINLIEST

Answers

Answer:

files  

Explanation:

i had to answer the same question

who Organized elements into four groups based on propertie

Answers

The answer to this is Mendeleev

If I walk 10 meters down the hallway, then 2 meters into a classroom, what is my total distance walked in meters(write the number)

Answers

12 meters in total because if u add those two number u get 12

Answer:

12 meters

Explanation:

Explain why the gamma rays do not bend.

Answers

they are electrically neutral, they are not deflected by magnetic fields

which sample is a pure substance?
a. a test tube of zinc oxide
b. a container of zinc and oxygen
c. a flask of pond water
d. a jar of soil

Answers

Answer:

The answer is A. Test Tube of zinc oxide

Use the picture to answer the question.
Name at least three physical properties of the bowling
ball.

Answers

Answer:

The physical properties is hardness shape and color, I choose hardness because I have grabbed bowling balls before and they are very hard well there could be different types of bowling balls made of different things but I have never seen one or toughed a bowling ball that is not hard. Another physical property  I chose for the bowling ball was shape, The reason I chose shape was because the bowling ball is circle, the actual name for a 3-D circle is sphere. The last physical property for a bowling ball is color because mostly all bowling balls have color for example the one in the picture it is red with a little bit of pink, there is many different bowling balls that have different color different hardness but NOT different  shape. That is the physical properties of a bowling ball.

Explanation:

Hope this helps everyone who needed help with this :)

What did you find out from this investigation? Be thoughtful in your answer.

Answers

What’s the invistagation about????
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