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
Goryan [66]
3 years ago
12

Part a what happens to these physical properties as the strength of intermolecular forces increases? drag each item to the appro

priate bin. hints helpreset melting pointvapor pressureboiling pointviscositysurface tension increase decrease
Chemistry
2 answers:
Marysya12 [62]3 years ago
6 0
<h2>Strength when Intermolecular Forces Increase </h2>

When the strength of intermolecular forces increases then boiling point, melting point, viscosity, surface tension also increases and vapor pressure decreases. With the increase of intermolecular forces B.P, M.P, viscosity and surface tension increases because strong intermolecular forces require more energy to break.

For this purpose energy is provided in the form of heat energy. Therefore, the ones which have stronger bonds will have a higher B.P, M.P, viscosity and surface tension. When the intermolecular forces are strong then the substances are tightly held together so the vapor pressure will be low and it will be difficult to vaporize.


bearhunter [10]3 years ago
4 0
1. Melting point is the temperature at which the solid turns to liquid. In order to reach this point, the intermolecular forces of the solid must be broken so that it would incorporate the molecular arrangement of a liquid.<em> So, the stronger the intermolecular forces, the greater the energy which consequently leads to higher melting points.</em>

2. Vapor pressure is the pressure exerted by the gas above its solid or liquid substance. It is closely related to volatility, which is the ability of the substance to convert from liquid to gas at a certain temperature. <em>The stronger the intermolecular force, the less volatile the substance is which is manifested in increasing vapor pressure.</em>

3. Boiling point has the same concept as melting point, but the change is from liquid to gas. <em>So, the stronger the intermolecular forces, the greater the energy which consequently leads to higher boiling points.</em>

4. Viscosity is the ease of fluidity. Solids, which have stronger intermolecular forces are not viscous at all. <em>So, the stronger the intermolecular forces, the viscosity decreases.</em>

5. Surface tension is the force the substance exerts near its surface or interface. <em>The stronger the intermolecular force, the stronger the surface tension. </em>
You might be interested in
How much sodium bicarbonate to raise alkalinity in pool.
almond37 [142]

Answer:

A rule of thumb is that 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool's pH is tested below 7.2, add 3-4 pounds of baking soda. If you're new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount.

4 0
2 years ago
Design a test to determine whether thorium-234 also emits particles. First, explain how Rutherford’s experiment measured positiv
liubo4ka [24]

The characteristics of the α and β particles allow to find  the design of an experiment to measure the ²³⁴Th particles is:

  • On a screen, measure the emission as a function of distance and when the value reaches a constant, there is the beta particle emission from ²³⁴Th.
  • The neutrons cannot be detected in this experiment because they have no electrical charge.

In Rutherford's experiment, the positive particles directed to the gold film were measured on a phosphorescent screen that with each arriving particle a luminous point is seen.

The particles in this experiment are α particles that have two positive charge and two no charged is a helium nucleus.

The test that can be carried out is to place a small ours of Thorium in front of a phosphorescent screen and see if it has flashes, with the amount of them we can determine the amount of particle emitted per unit of time.

Thorium has several isotopes, with different rates and types of emission:

  • ²³²Th emits α particles, it is the most abundant 99.9%
  • ²³⁴Th emits β particles, exists in small traces.

In this case they indicate that the material used is ²³⁴Th, which emits β particles that are electrons, the detection of these particles is more difficult since it has one negative charge, it has much lower mass, but they can travel further than the particles α, therefore, for what type of isotope we have, we can start measuring at a small distance and increase the distance until the reading is constant. At this point all the particles that arrive are β, which correspond to ²³⁴Th.

Neutron detection is much more difficult since these particles have no charge and therefore do not interact with electrons and no flashing on the screen is varied.

In conclusion with the characteristics of the α and β particles we can find the design of an experiment to measure the ²³⁴Th particles is:

  • On a screen, measure the emission as a function of distance and when the value reaches a constant, there is the β particle emission from ²³⁴Th.
  • The neutrons cannot be detected in this experiment because they have no electrical charge.

Learn more about radioactive emission here: brainly.com/question/15176980

7 0
3 years ago
What happens when The vapour obtained by dropping conc. H2SO4 in a mixture of KI and MnO2 is treated with hypo solution​
Shalnov [3]

Iodine is decolorized.

The first reaction stated in the question occurs as follows;

2 KI (aq) + 2 H2SO4 (aq) + MnO2 (s) → MnSO4 (aq) + K2SO4 (aq) + I2 (s) + 2 H2O (l)

The reaction here is the formation of iodine from MnO2 and KI in the presence of dropwise H2SO4.

Hypo is the common name of sodium thio-sulphate or sodium hypo-sulfite.

The equation of the titration reaction is;

2Na2S2O3 + I2→ Na2S4O6 + 2NaI

When this reaction takes place, iodine is decolorized due to its reduction to I^-.

6 0
3 years ago
Which particle of the atom has a negative charge?
Alex_Xolod [135]
C.) Electron has a negative charge.....
6 0
3 years ago
es the molecule defective leading to sickle cell anemia. Predict whether the following hypothetical change would or would not ha
Pachacha [2.7K]
<h2><u>Full Question:</u></h2>

In hemoglobin, a single amino acid change at position 6 from Glu to Val has major consequences on hemoglobin structure that makes the molecule defective leading to sickle cell anemia. Predict whether the following hypothetical change would or would not have a major effect at position 6. Briefly explain (1-2 sentences). Glu to Leu Hint: Look at the structures of the R groups and consider their chemical properties

<h2><u>Answer:</u></h2>

The structure of the haemoglobin, hence the RBC won't be same as normal.

<h3><u>Explanation:</u></h3>

Both the leucine and glutamic acid are alpha amino acids which have an alpha carboxylic acid group and an alpha amino group. The variable in case of glutamic acid is propyl acid while the variable in case of leucine is isobutyl.

The glutamic acid is the normal amino acid of the 6th position of Beta chain of hemoglobin. Its an acid group, so can form bonds with another base inside the haemoglobin, or can form other hydrogen bonds. But the isobutyl group is an alkyl group. So it doesn't have that much effect in the recovering the structure, and sickle cell anemia prevails.

6 0
3 years ago
Other questions:
  • In a sample of hydrogen sulfide (M = 34.1 g/mol) at a temperature of 3.00 × 102 K, estimate the ratio of the number of molecules
    12·2 answers
  • water is composed of two atoms of ____ and one of oxygen. question 2 options: carbon silicon nitrogen hydrogen
    12·1 answer
  • Use Coulomb's Law to calculate the energy of a copper ion and an oxide ion at their equilibrium ion-pair separation distance.
    10·1 answer
  • Compounds are pure substances. What other substances are considered pure substances?
    15·1 answer
  • MATH. Tom bought 15 party hats priced at 3 for $0.65 and 56 noisemakers priced at 7 for $1.25. What was the total cost of the ha
    9·2 answers
  • What is the process of grouping similar things together
    13·1 answer
  • The organism is multicellular and has a cell wall but no chloroplasts. The organism gets the energy it needs by decomposing orga
    6·2 answers
  • Position in the periodic table.
    12·1 answer
  • Define a transverse wave
    13·1 answer
  • a guy walks into a bar and sees a non-linear person. he says hey wt y=mx+b is this? he threw a sploddy gun grenade in the place.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!