How Substances Dissolve: Checking For Understanding Flash Quiz

1. A general rule in chemistry is that "like dissolves like". This rule means that_______________

A general rule in chemistry is that "like dissolves like". This rule means that a solvent will dissolve substances that have similar molecular structures.

A general rule in chemistry is that "like dissolves like". This rule means that a solvent cannot dissolve substances that have a similar molecular structure.

A general rule in chemistry is that "like dissolves like". This rule means that a solute will dissolve particles that have a similar molecular structure.

A general rule in chemistry is that "like dissolves like". This rule means that a solvent will dissolve substances that are covalently bonded.

The correct answer explains that the general rule in chemistry, "like dissolves like," means that a solvent will dissolve substances that have similar molecular structures. This is because substances with similar molecular structures have similar intermolecular forces, allowing them to mix and dissolve in each other.

Explanation

The correct answer explains that the general rule in chemistry, "like dissolves like," means that a solvent will dissolve substances that have similar molecular structures. This is because substances with similar molecular structures have similar intermolecular forces, allowing them to mix and dissolve in each other.

2. How does an increase in temperature help a solute dissolve?

An increase in temperature helps a solute dissolve by causing its particles to move more quickly. This causes the particles to collide more frequently. At higher temperatures, the collisions among particles transfer more energy. More energy breaks bonds between solute particles more easily.

An increase in temperature helps a solute dissolve by causing its particles to solidify more quickly. This causes the particles to adhere more frequently. At higher temperatures, the adhesion among particles transfer more energy. More energy breaks bonds between solute particles more easily.

An increase in temperature helps a solute dissolve by causing its particles to transfer more quickly. This causes the particles to transfer more frequently. At higher temperatures, the transfer among particles build-up more energy. More energy solidifies the bonds between solute particles more easily.

It does not. A decrease in temperature helps a solute dissolve by causing its particles to move more slowly and therefore more solidly combine, dissolving the particles more efficiently.

An increase in temperature helps a solute dissolve because it causes the solute particles to move more quickly. This increased movement leads to more frequent collisions between the solute particles and the solvent particles. These collisions transfer more energy, which in turn breaks the bonds between the solute particles more easily. As a result, the solute particles are able to disperse and dissolve more effectively in the solvent.

Explanation

An increase in temperature helps a solute dissolve because it causes the solute particles to move more quickly. This increased movement leads to more frequent collisions between the solute particles and the solvent particles. These collisions transfer more energy, which in turn breaks the bonds between the solute particles more easily. As a result, the solute particles are able to disperse and dissolve more effectively in the solvent.

3. In order to dissolve a substance, solvent particles must be able to __________________

In order to dissolve a substance, solvent particles must be able to attract solute particles more strongly than the solute particles attract one another.

In order to dissolve a substance, solvent particles must be able to covalently and ionically bond with one another.

In order to dissolve a substance, solute particles must be able to attract each other strongly to form a solution.

In order to dissolve a substance, solvent particles must be soluble causing the solvent to dissolve.

Solvent particles must be able to attract solute particles more strongly than the solute particles attract one another in order to dissolve a substance. This is because the solvent particles surround and separate the solute particles, pulling them away from each other and dispersing them throughout the solvent. If the solute particles are more strongly attracted to each other than to the solvent particles, they will not separate and dissolve in the solvent.

Explanation

Solvent particles must be able to attract solute particles more strongly than the solute particles attract one another in order to dissolve a substance. This is because the solvent particles surround and separate the solute particles, pulling them away from each other and dispersing them throughout the solvent. If the solute particles are more strongly attracted to each other than to the solvent particles, they will not separate and dissolve in the solvent.

4. What is a nonpolar molecule?

A nonpolar molecule's electrons are evenly distributed over the whole molecule so it does not have partial charges. Without the partial polar charges, most nonpolar compounds do not dissolve in polar compounds. Nonpolar compounds are insoluble in polar compounds.

A nonpolar molecule's electrons are transferred causing it to have no partial charges.Without the partial polar charges, most nonpolar compounds do not dissolve in polar compounds. Nonpolar compounds are insoluble in polar compounds.

A nonpolar molecule's electrons bond with polar molecules and are soluble in polar compounds.

A nonpolar molecule's protons are evenly distributed over the whole molecule so it does not have partial charges. Without the partial polar charges, most nonpolar compounds do not dissolve in polar compounds. Nonpolar compounds are insoluble in polar compounds.

A nonpolar molecule is one in which the electrons are evenly distributed over the entire molecule, meaning it does not have any partial charges. This lack of partial charges makes nonpolar compounds insoluble in polar compounds, as they do not have the necessary attractions to form a solution.

Explanation

A nonpolar molecule is one in which the electrons are evenly distributed over the entire molecule, meaning it does not have any partial charges. This lack of partial charges makes nonpolar compounds insoluble in polar compounds, as they do not have the necessary attractions to form a solution.

5. When a molecular compound dissolves, do the molecules break apart?

When a molecular compound dissolves, the molecules move toward the water molecules and away from one another, the individual molecules do not break apart.

When a molecular compound dissolves, the molecules separate and re-bond individually forming Hydrogen bonds.

When a molecular compound dissolves, the molecules move toward the Hydrogen and the individual molecules break apart.

When a molecular compound dissolves, the molecules separate and are distributed evenly over the whole water molecule.

When a molecular compound dissolves, the molecules are attracted to the water molecules due to intermolecular forces. As a result, they move towards the water molecules and away from each other, but they do not break apart. The individual molecules remain intact and do not form new bonds or break existing bonds. This process allows the molecular compound to be evenly distributed throughout the water, resulting in a homogeneous mixture.

Explanation

When a molecular compound dissolves, the molecules are attracted to the water molecules due to intermolecular forces. As a result, they move towards the water molecules and away from each other, but they do not break apart. The individual molecules remain intact and do not form new bonds or break existing bonds. This process allows the molecular compound to be evenly distributed throughout the water, resulting in a homogeneous mixture.

6. How can a solute affect a solutions physical properties?

A solute can change the physical properties of the pure solvent. One way a solute can affect a solution's physical property is to change its response to temperature: freezing or melting point.

A solute cannot really change the physical properties of the pure solvent. One way a solute may affect a solution's physical property is to change its boiling and cooling point.

A solute can change the physical properties of Hydrogen bonded solvents. One way a solute can affect a Hydrogen bonded solution's physical property is to change its crystal formation.

A solute can change the physical, chemical and behavioral properties of the pure solvent. One way a solute can affect a solution's properties is to change its crystalization points.

A solute can change the physical properties of the pure solvent by altering its response to temperature, specifically its freezing or melting point.

Explanation

A solute can change the physical properties of the pure solvent by altering its response to temperature, specifically its freezing or melting point.

7. How does stirring or shaking a solution allow more contact between solvent and solute particles?

Stirring or shaking moves the dissolved solute particles away from the rest of the solute. Then more solvent can reach the solute that has not dissolved.

Stirring or shaking moves the dissolved solute particles toward the rest of the solute. Then more solvent can reach the solute that has not dissolved.

Stirring or shaking moves the dissolved solute particles outside of the rest of the solute. Then the solvent can move into the solute that has not dissolved.

Stirring or shaking eliminates the solute particles from the rest of the solute. Then more solvent can dissolve the remaining solute.

Stirring or shaking a solution moves the dissolved solute particles away from the rest of the solute. This creates more space for the solvent to come into contact with the solute that has not yet dissolved. By increasing the contact between the solvent and solute particles, stirring or shaking allows for a more efficient and effective dissolution process.

Explanation

Stirring or shaking a solution moves the dissolved solute particles away from the rest of the solute. This creates more space for the solvent to come into contact with the solute that has not yet dissolved. By increasing the contact between the solvent and solute particles, stirring or shaking allows for a more efficient and effective dissolution process.

8. Why do some ionic compounds like silver chloride (AgCl) not dissolve in water while others do?

Some ionic compounds dissolve in water and others do not because attractions between ions in the crystal are stronger than those between the ions and water molecules. So the water cannot pull the ions apart.

Some covalent compounds dissolve in water and others do not because attractions between ions in the crystal are stronger than those between the ions and water molecules. So the water cannot pull the ions apart.

Some ionic compounds dissolve in water and others do not because attractions between atoms in the crystal are stronger than those between the atoms and water molecules. So the water cannot pull the ions apart.

Some ionic compounds dissolve in water and others do not because attractions between ions in the covalent bond are stronger than those between the ions and water molecules. So the water cannot pull the ions apart.

Some ionic compounds dissolve in water and others do not because attractions between ions in the crystal are stronger than those between the ions and water molecules. So the water cannot pull the ions apart. This explanation is correct because it explains the concept of solubility in terms of the strength of the attractions between ions in the crystal and the water molecules. When the attractions between the ions in the crystal are stronger, the water molecules are not able to overcome these attractions and dissolve the compound.

Explanation

Some ionic compounds dissolve in water and others do not because attractions between ions in the crystal are stronger than those between the ions and water molecules. So the water cannot pull the ions apart. This explanation is correct because it explains the concept of solubility in terms of the strength of the attractions between ions in the crystal and the water molecules. When the attractions between the ions in the crystal are stronger, the water molecules are not able to overcome these attractions and dissolve the compound.

9. How does increase in surface area help a solute dissolve more quickly?

Increase in surface area helps a solute to touch more of the solvent. As a result, there are more collisions between solute particles and solvent particles dissolving quicker and more efficiently.

Increase in surface area helps a solute to consolidate more of the solvent. As a result, there are less collisions between solute particles and solvent particles dissolving quicker and more efficiently.

Increase in surface area helps a solvent to touch more of the solution. As a result, there are more collisions between solvent particles and solution, dissolving quicker and more efficiently.

Increase in surface area helps a particle join more of the solvent. As a result, there are more particles between the solute and solvent, dissolving quicker and more efficiently.

Increase in surface area helps a solute to touch more of the solvent, leading to more collisions between solute particles and solvent particles. This increased contact and collision rate result in the solute dissolving more quickly and efficiently.

Explanation

Increase in surface area helps a solute to touch more of the solvent, leading to more collisions between solute particles and solvent particles. This increased contact and collision rate result in the solute dissolving more quickly and efficiently.

10. Why is energy needed to dissolve a solute?

Energy is needed to dissolve a solute to break the attractions between particals of solute.

Energy is needed to dissolve a solute to form covalent bonds between particals of solute.

Energy is needed to dissolve a solute to ionically transfer particals of solute.

Energy is needed to dissolve a solute to limit the attractions between particals of solute.

When a solute dissolves in a solvent, the attractions between the particles of the solute need to be broken in order for the solute to mix with the solvent. This requires energy because the particles of the solute are held together by intermolecular forces such as hydrogen bonding, dipole-dipole interactions, or London dispersion forces. Breaking these attractions requires input of energy. Once the attractions are broken, the solute particles can mix with the solvent particles, allowing the solution to form.

Explanation

When a solute dissolves in a solvent, the attractions between the particles of the solute need to be broken in order for the solute to mix with the solvent. This requires energy because the particles of the solute are held together by intermolecular forces such as hydrogen bonding, dipole-dipole interactions, or London dispersion forces. Breaking these attractions requires input of energy. Once the attractions are broken, the solute particles can mix with the solvent particles, allowing the solution to form.

11. What do these symbols mean?

or

These symbols mean that the atom has either a slight (partial) positive or negative charge.

These symbols mean that the molecule has either a slight (partial) positive or negative charge.

These symbols mean that the atom has a positive or negative electronegativity.

These symbols mean that the atom is polar.

The symbols " or " are used to indicate that the atom has either a slight (partial) positive or negative charge. This is commonly seen in chemistry when representing molecules or compounds that have polar bonds. The symbols are used to show the distribution of charge within the molecule, with the positive or negative charge being localized on specific atoms.

Explanation

The symbols " or " are used to indicate that the atom has either a slight (partial) positive or negative charge. This is commonly seen in chemistry when representing molecules or compounds that have polar bonds. The symbols are used to show the distribution of charge within the molecule, with the positive or negative charge being localized on specific atoms.

12. Select the ones you like

Option1

Option2

Option3

Option4

The given question asks the test-taker to select the options they like. The correct answer is Option1, indicating that the test-taker likes Option1.

Explanation

The given question asks the test-taker to select the options they like. The correct answer is Option1, indicating that the test-taker likes Option1.