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Which contributes to the dissolution of sugar in water? a. the dissociation of an ionic compound in water b. a strong pull of water molecules on an ionic compound c. the dissociation of a polar covalent compound in water d. a strong pull of water molecules on a polar covalent compound


Option C: The dissociation of a polar covalent compound in water.

Sugar is made up of sucrose molecules containing polar covalent bonds. They have same type of oxygen-hydrogen covalent bonds that are present in water.

Since, sugar is not an ionic compound, option a and option b are incorrect. Also, due to same type of bonding in water and sugar molecules there will be no such force of attraction between them, this will opt out the option d.

Thus, dissolution of sugar in water is the dissociation of a polar covalent compound in water and option c is correct.


Related Questions

Posted in Chemistry

A compound contains 69.94 percent iron and 30.06 percent oxygen. What is its molecular formula if the molar mass of the compound is 199.55 grams per mole?

Answer:

The molecular formula is Fe₂O₃

Explanation:

The molar mass of the compound is 199.55 g/mol; this means that if we have 1 mol of the compound, we'd have 199.55 g, we'd also have:

  • 199.55 * 69.96/100 = 139.57 g of iron
  • 199.55 * 30.06/100 = 59.98 g of oxygen

Now we calculate the moles of each element present in the given masses, using their atomic masses:

  • 139.57 g Fe ÷ 55.84 g/mol = 2.50 mol Fe
  • 59.98 g O ÷ 16 g/mol = 3.75 mol O

Then in 1 mol of the compound, there's 2.50 mol Fe and 3.75 mol O:

  • Fe₂.₅O₃.₇₅

We convert the coefficients into integers (Divide them by the lowest number among them and multiply them by two):

  • Fe₂O₃

Posted in Chemistry

Which compound contains only nonpolar covalent bonds? O2 CO2 H2O NO3

I believe the correct answer from the choices listed above is the first option. O2 is the compound that contains only nonpolar covalent bonds. It is nonpolar since it does not have unequal distribution of charges. Hope this answers the question. Have a nice day.

Posted in Chemistry

An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 2.50g of this compound produced 3.67g of carbon dioxide and 1.50g of water. How many moles of carbon, C, were in the original sample?

The solution to the problem is as follows:

 a) 

C + O2 = CO2 

Molar mass CO2 = 44 g/mol 

3.67 g CO2 * 1 mol / 44 g = 

=0.0834 mol CO2 = 0.0834 mol C 

I hope my answer has come to your help. God bless and have a nice day ahead!

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What kind of bond does these have? 1.tap water 2.distilled water 3.sugar 4.salt 5.salt in distilled water 6.sugar in distilled water

1. Tap water has a small concentration of H+ & OH- ions as well as water molecules, hence there would be permanent dipole-permanent dipole (p.d.-p.d.) forces of attraction between the water molecules (aka H-bonds) as well as ionic bonds between the H+ & OH- ions.

2. Distilled water does not have H+ & OH- ions, hence only H-bonds exist between the water molecules.

3. There are covalent bonds between the individual sugar molecules.
 
4. There are ionic bonds between the Na+ & Cl- ions in NaCl.
 
5. There are p.d.-p.d. forces of attraction between the Na+ ions and the O2- partial ions of the water molecules as well as between the Cl- ions and the H+ partial ions of the water molecules. There are also H-bonds between the individual water molecules and ionic bonds between the Na+ & Cl- ions (although these are in much lower abundance than in unsolvated solid NaCl).

6. There are i.d.-i.d. as well as p.d.-p.d. forces of attraction between the sugar molecules and the water molecules. There are also H-bonds between the individual water molecules and covalent bonds within the sugar molecules.

Posted in Chemistry

Choose one property of water that makes it unique describe the property and explain the chemical or physical reasons that causes water to have to property.

Water has high heat specific capacity. Heat specific capacity is the amount of heat that is needed to raise the temperature of one gram of particular substance by one degree Celsius. The high specific heat capacity of water is due to the hydrogen bond that exist among the molecules of water. The hydrogen bond is quite strong and it will take a lot of heat to break the bonds. Thus, it takes a lot of heating to increased the temperature of water by one degree Celsius. This is also the reason why water has high boiling point.

Posted in Chemistry

Which of these is a property of a substance that is composed of atoms that are held together by ionic bonds? It can be shaped into wires. It has a low melting point. It conducts electricity when in solid form. It conducts electricity when it is dissolved in water.

Answer: Option (D) is the correct answer.

Explanation:

A ionic compound will have opposite charges on the 2 atoms attached to each other.

When ionic compound is in solid state then atoms will be more closer to each other and also due to the opposite charges the molecules will have strong force of attraction between them.

In order to conduct electricity, free movement of ions is required. So, a solid with ionic bonds is not able to conduct electricity as molecules or ions are closely held together.

Whereas when a substance that is composed of atoms that are held together by ionic bonds is dissolved in water then its ions will start to move freely from one point to another. Thus, this solution will be able to conduct electricity.

Thus, we can conclude that out of the given options, conducts electricity when it is dissolved in water displays a property of a substance that is composed of atoms that are held together by ionic bonds.

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The four fundamental types of organic molecules are nucleic acids, proteins, lipids, and Blank Space __________. A.phosphates B.nitrates C.sulfates D.carbohydrates

D. Carbohydrates

This is the fourth macro-molecule being described.

If this answer helped you, please vote me as brainliest!

Posted in Chemistry

What happens at the triple point of water?

Answer:

All the three phases coexist at triple point.

Explanation:

The triple point of water is 0.01°C (273.16K) and 4.58 mmHg. At this temperature and pressure the water exist in all the three forms or phases.

The three phases are solid, liquid and gas.

It is like water is boiling and freezing at the same time.

If we change temperature or pressure, even slightly, one of the phases of water will disappear (based on changes made).

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Which of the following molecules has correctly labeled bond dipoles?

The bond dipole moment uses the idea of electric dipole moment to measure the polarity of a chemical bond within a molecule. It occurs whenever there is a separation of positive and negative charges. In the diagram above, option B exhibited a bond dipole moment. I hope this helps.

Posted in Chemistry

Which statement best relates the strength and concentration of a base? At high enough concentrations, a weak base becomes strong. Even at low concentrations, a strong base is strong. A weak base always has a low concentration. The stronger the base, the higher its concentration.

Answer: Option (b) is the correct answer.

Explanation:

When there are more number of hydroxide ions in a solution then there will be high concentration of OH^{-} or hydroxide ions. As a result, more will be the strength of base in that particular solution.

A base is strong when it readily dissociate into its ions in the solution. When a base is strong, then it does not matter at what concentration it is dissolved in the solution because despite of its low concentration it will remain a strong base.

Thus, we can conclude that out of the given options, the statement even at low concentrations, a strong base is strong best relates the strength and concentration of a base.


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Posted in Chemistry

How are ammonia, salt, and water related

I think its because they are all compounds but I could be wrong.

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Which type of atom has the strongest attraction for electrons in bond formation? barium (Ba) chlorine (Cl) iodine (I) strontium (Sr)

Answer: Chlorine has the strongest attraction for electrons in bond formation.

Explanation:

Chlorine is highly electronegative as compared to iodine and has high electron gain enthalpy. So, it will readily accept an electron in order to complete its octet. The electronegativity decreases down the group from Cl to I, and hence the tendency to gain an electron decreases.

In case of Barium, and Strontium there are completely filled sub shells and therefore the tendency to gain an electron is the least.  

Thus, it can be concluded that chlorine has the strongest attraction for electrons in bond formation.

Posted in Chemistry

How can you tell if an object has elastic properties? A.)If two people pulls on it in opposite directions it falls apart B)If two people pull on it ,it maintains its original size and shape C)if two people pull on it in opposite directions ,it stretches and remains in a new shape D.)if two people pull on it in opposite direction,it stretches.Then when they let it go, it turns to its original size and shape

13.2 Elasticity Elasticity is a fundamental property of materials. Springs of all kinds are examples of elastic bodies. Let us consider the characteristics of a spring. We find that a spring will respond to distorting force and then return to its original shape after the distorting force is removed. Any material or body can be deformed by an applied force. If it returns to its original shape after the force is removed, it is said to be elastic. Most substances are elastic to some degree. In a technical sense a substance with a high elasticity is one that requires a large force to produce a distortion-for example, a steel sphere!

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Samuel adds a teaspoon of salt to a glass of water. He notices that the salt disappears. Samuel takes a sip to discover that the water tastes salty. What kind of change has occurred? a) It’s a chemical reaction because a new substance has formed. b) It’s a physical change because the water and the salt kept their original properties. c) It’s an example of synthesis because two substances reacted to give one substance. d) It’s a chemical reaction because the water now tastes salty but originally did not

Answer: Option (b) is the correct answer.

Explanation:

When a teaspoon of salt is dissolved in water then it will completely dissociate into ions forming a homogeneous solution.

This is because particles of salt will evenly distribute into ions in the water.

This is a physical change as salt has dissociated into its ions and it has not chemically combined to the water molecules.

Hence, both salt and water will retain their chemical; properties.

Thus, we can conclude that in the given situation it’s a physical change because the water and the salt kept their original properties.

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What are the products of the double-replacement reaction between potassium bromide and silver nitrate? Name the resulting compounds.

Answer: The products formed are potassium nitrate (KNO_3) and silver bromide ( AgBr ).

Explanation: Double replacement or double displacement reactions are the reactions in which the positive ions and negative ions of the two reactants interchange to form the products. These reactions are carried out on the basis of their position in reactivity series.

The elements lying above in the reactivity series will be able to displace the elements that lie below in the reactivity series.

For the reaction of potassium bromide and silver nitrate, the reaction follows:

KBr(aq.)+AgNO_3(aq.)\rightarrow AgBr(s)+KNO_3(aq.)

The resulting products are potassium nitrate (KNO_3) and silver bromide ( AgBr ).

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Posted in Chemistry

What property do atoms of these elements have that helps make the molecules polar

You have not mention here about those elements but the general concept for this is the:
uneven distribution ------> polar
even distribution -------> non-polar

Posted in Chemistry

What is the relationship between the atomic numbers and ionic radii of the elements in the group 2A? What is the relationship between atomic numbers and first ionization energies? (2A group) Why do these relationships exist? Propose an explanation for each of these relationships. (2A group) Are these relationships consistent with the periodic trends that you have been studying? (2A group)

As the atomic number increases, the ionic radius increases.
As the atomic number increases, the first ionization energy decreases.

These trends both exists because as we proceed down the group, the size of the atom increases due to addition of an electron shell. The increased number of electrons increase the shielding effect, meaning the ion is not held together as tightly, increasing its size, and the outer most electrons are not pulled towards the nucleus as strongly, making it easier to remove them.

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What is the formula of a compound formed between nitrogen (N) and barium (Ba)?

The formula of a compound formed between nitrogen (N) and barium (Ba) is BARIUM NITRIDE Ba3N2. 
            3Ba + N2 ------>  Ba3N2

Posted in Chemistry

Water is an example of a(n) _____.

Your answer is d ) a complex system

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