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14 Jan 2019

In aqueous solution, why are covalent bonds more stable than ionic bonds? In other words, why will ionic compounds dissociate into constituent ions, but molecular compounds do not dissociate readily into constituent atoms?

What chemical characteristics cause a substance to dissociate a hydrogen ion?What chemical characteristics cause a substance to dissociate a hydrogen ion?

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Nestor RutherfordLv2

15 Jan 2019

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Related questions

Ionic bonds are formed when two opposite charged ions (formed when atoms lose or gain electrons) encounter each other. These bonds can be viewed as âextreme polar covalent bondsâ as one atom is in total control of the otherâs electron(s). Why are ionic bonds so much weaker when they are in water?

A.	Ionic compounds such as salts are hydrophilic, so they prefer to form bonds with water molecules over other compounds.

B.	Water molecules readily form covalent bonds to charged particles and, as these bonds are stronger than ionic bonds, the ionic bonds are pulled apart.

C.	Water molecules shorten the size of covalent bonds and this weakens ionic interactions.

D.	Water molecules readily donate electrons and nullify the positively charged ions.

E.	Polar water molecules can physically interfere with the polar (positive/ negative) charged attraction between ions and thus the ionic bonds are disrupted and weakened.

Circle the word of phrase that correctly completes the sentece or answers the question. The property that allows water molecule to be attracted to each other is called (cohesion, adhesion). This propert is conferred by (covalent bonds, hydrogen gonds). This property is conferred by ( covalent bond, hydrogen bond). Ice is ( more dense, less dense) than liquid water. Water is polar molecule because of the unequal sharing of( electrons, protons) between the atoms in H2O. Adhesion of water to a surface is through the action of (covalent bond, ionic bonds, hydrogen bonds) between the water and the surace. Water is converted from liquid to vapor through the brakage of ( colvalent, hydrogen) bonds. Which (one) of these substance is not hydrophilic:( cellulose, oil, NaCl). Which of these will not dissolve in water, even though it is polar?(cellulose, oil, NaCl). Which of these is an electrolyte? (cellusose oil, NaCl). A buffer will contain a week acis , weak base, both).

1. Compounds that are made of carbon, hydrogen, oxygen, nitrogenand/or sulfur are:

a. ionic compounds

b. molecular compounds

2. A peptide bond is a...

a. covalent bond

b. intermolecular force

3. In chemistry, what is an R group?

a. a real group

b. a free radical

c. Argon

d. a functional group

4. A hydrogen bond is a type of

a. dispersion force

b. dipole-dipole force

c. covalent bond

d. ion-dipole force

5. In general chemistry, what do weak acids do?

a. accept a proton

b. donate a proton

6. In general chemistry, what do weak bases do?

a. accept a proton

b. donate a proton

7. What happens to a weak acid when it donates a proton?

a. it becomes positively charged

b. it becomes negatively charged

c. it become neutral

8. what happens to a weak base when it accepts a proton?

a. it becomes positvely charged

b. it becomes negatively charged

c. it becomes neutral

9. R groups that cluster in the center of proteins or are foundadjacent to the hydrocarbon chains of membrane phospholipids tendto have R groups with alkyl groups, such as (âCH₃) or(âCH₂âCH₃). Using your General Chemistryknowledge, what bond, force or interaction would form between thesegroups?

a. chemical bond

b. hydrogen bond

c. van der waals interaction

d. covalent bond

10. A amino acid has an R group containing an amide group(âCONH₂), and another amino acid has an R groupcontaining a hydroxyl group (âOH). Using your General Chemistryknowledge, what bond or force would form between these groups?

a. chemical bond

b. hydrogen bond

c. van der waals interaction

d. covalent bond