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
xxTIMURxx [149]
3 years ago
9

Complete the following paragraph to describe how the electrostatic forces in salt compounds can be overcome by interactions betw

een the solvent molecules and the salt compounds. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.
(1) insoluble
(2) ionic bonds
(3) ion-dipole forces
(4) soluble
(5) hydrogen bonds
(6) dipole-dipole forces
(7) covalent bonds
(8) higher
(9) dispersion forces
(10) lower

Salts are composed of ions that form a tightly packed and ordered network, which is called a crystal lattice, and it is held together by ____.
When a salt is added to a polar solvent like water, the ions interact with the solvent molecules via ____, which overcome the forces originally holding the ions together.
The ions are then isolated and stabilized in solution via these interactions, and when this occurs for most of the salt compound, it is considered in ____ that solvent.
Due to the nature of the interaction between ions and solvent molecules, a concentration of ions can be dissolved ____in water than in alcohol.
Chemistry
1 answer:
motikmotik3 years ago
3 0

Answer:

The words are: (2) ionic bonds; (3) ion-dipole forces; (4) soluble; (8) higher

Explanation:

-Salts are composed of ions that form a tightly packed and ordered network, which is called a crystal lattice, and it is held together by <u>ionic bonds</u>.

<u><em>Explanation</em></u><em>: salts are ionic compounds, which are composed by oppositely charged ions (cations and anions) which are bonded each other by ionic bonds, in an ordered arrangement, often a crystalline solid.</em>

-When a salt is added to a polar solvent like water, the ions interact with the solvent molecules via <u>ion-dipole forces</u>, which overcome the forces originally holding the ions together.

<em>Explanation: the molecules of a polar solvent are dipoles because they have dipolar momentum (a difference in charge due to a electronegativiy difference). When a salt is dissolved in a polar solvent, it dissociates in ions. So, the resulting interactions between these species are ion-dipole forces.</em>

-The ions are then isolated and stabilized in solution via these interactions, and when this occurs for most of the salt compound, it is considered <u>soluble</u> in that solvent.

<em>Explanation: the ions in solution are surrounded by solvent molecules which stabilizes them. A salt which is enterely dissolved in a solvent is soluble in that solvent.</em>

-Due to the nature of the interaction between ions and solvent molecules, a concentration of ions can be dissolved <u>higher</u> in water than in alcohol.

<em>Explanation: water molecules have unique properties that make water an universal solvent. Due to these properties and its polarity, water can dissolve larger quantities of salt than other polar solvents such as alcohol. </em>

You might be interested in
How many charges do copper(II) and Carbide have
MAVERICK [17]

Answer:

Copper is 2+ and carbide is 2-

5 0
3 years ago
The molar mass of HgO is 216.59 g/mol. The molar mass of O2 is 32.00 g/mol. How many moles of HgO are needed to produce 250.0 g
Irina-Kira [14]
A reaction in which Oxygen (O₂) is produced from Mercury Oxide (HgO) would be a decomposition reaction.
           2HgO    →    2Hg    +    O₂

If 250g of O₂ is needed to be produced,
then the moles of oxygen needed to be produced = 250g  ÷  32 g/mol
                                                                                     = 7.8125 mol

Now, the mole ratio of Oxygen to Mercury Oxide is  1  :  2
∴ if the moles of oxygen =  7.8125 mol
then the moles of mercury oxide = 7.8125 mol × 2
                                                        = 15.625 mol


Thus the number moles of HgO needed to produce 250.0 g of O₂ is 15.625 mol
 
6 0
3 years ago
Which of the following describes an element? Choose all that apply.
Kisachek [45]

Answer:

A) Gold is an example.

D) There is only one type of substance present.

F) Composed of one type of atom with its own unique properties.

Explanation:

Hello!  These are the correct answers! (I took the K12 quiz)

Have a blessed day! :)

5 0
3 years ago
If you combine 320.0 ml of water at 25.00 °c and 120.0 ml of water at 95.00 °c, what is the final temperature of the mixture? us
Inga [223]
The heat from the hotter water will go into the colder water untl equilibrium is reached. Equilibrium is same temperature!

Now, the heat is proportional to the mass, the specific heat and the temperature difference. The specific heat does not matter since all is water, it will cancel out:

m_1 * c_H20 * ( T_final - T_1 ) = -m_2 * c_H20 * ( T_final - T_2)

Notice the minus, because one wins the heat of the one who loses it. In this way both sides have the same sign:

m_1*(T_final - T_1)=-m_2*(T_final-T_2), or after some simple algebra:

T_final = (m_1 * T_1 + m_2 * T_2 )/(m_1+m_2),

which looks like an arithmetic mean, and one could have gone for this, but the above shows all the work. Notice that if T_1=T_2, T_final=T_1 always, which makes sense.

Now you can convert volume to mass with the density, but since mass = density*volume and it is all water, the density will cancel out and you can work with volumes. If you prefer just say: 120 ml->120 g , etc ...

T_final = (120*95+320*25)/(320+120)=44.0909 degrees Celsius, or ~ 44.09 degrees with two decimal precision as your statement (beware of precision always!).

8 0
3 years ago
Which of these is an example of physical change?
LekaFEV [45]
<h2>Example of Physical change </h2>

Ice forming and then melting back into water are an example of physical change because the nature of water is liquid. Yet when it freezes then it becomes into solid form. The water which is liquid then freezes to form ice form which is as a solid which is also a physical change.

If we see that when ice which is frozen and in solid form starts to melt by heat then it converts into water which is liquid form. This indicates that water freezes to form ice means liquid to solid therefore its shape changes which is a physical change. When ice melts it becomes solid to liquid it also changes shape and subsequently takes a physical change.

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many oxygen atoms are in 8.20 g Na 2SO 4?
    12·1 answer
  • Consider the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g). If 0.02 moles of PCl5, 0.04 moles of PCl3, and 0.08 moles of Cl2 are combined
    8·1 answer
  • Based on the knowledge about genetic links between organisms, which category of classification was added to Linnaean Taxonomy?
    12·2 answers
  • Convert 1663.5 g to mg
    5·2 answers
  • 1. Long strands of DNA that contain lots of genes
    8·2 answers
  • Where is most of an atom's atomic mass?
    14·2 answers
  • What is the definition of Axis of rotation
    5·1 answer
  • How many electrons can be held in the third orbital?.
    15·2 answers
  • How much heat is required to raise the temperature of 1,500 g of water from 25°C to 52°C? The specific heat of water is 4.184 J/
    10·2 answers
  • Choose the term that best fits the following definition: the liquid or gas that carries the sample across the solid support.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!