Q. When ions are held together in an ionic compound the ions are held together by what force?
electrostatic force
Q. Is a compound that results when an ionic bond is formed between a cation and an anion?
Salt
Table of Contents
- Q. When ions are held together in an ionic compound the ions are held together by what force?
- Q. Is a compound that results when an ionic bond is formed between a cation and an anion?
- Q. What happens when like charges of an ionic compound are pushed together and why?
- Q. What type of compound is melts easily?
- Q. Which factor makes water an effective solvent?
- Q. Which type of interaction must be strong in order to dissolve a salt?
- Q. What is like dissolves like used to predict?
- Q. Which will dissolve most rapidly?
- Q. Why does agitation increase rate of dissolving?
- Q. Which particles interact during the dissolving process?
Q. What happens when like charges of an ionic compound are pushed together and why?
Ionic bonding is the attraction between positively- and negatively-charged ions. These oppositely charged ions attract each other to form ionic networks (or lattices). Electrostatics explains why this happens: opposite charges attract and like charges repel.
Q. What type of compound is melts easily?
Ionic compounds
Q. Which factor makes water an effective solvent?
It is water’s chemical composition and physical attributes that make it such an excellent solvent. Water molecules have a polar arrangement of the oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) had a negative charge.
Q. Which type of interaction must be strong in order to dissolve a salt?
ion / dipole interaction
Q. What is like dissolves like used to predict?
A popular saying used for predicting solubility is “Like dissolves like.” This statement indicates that a solute will dissolve best in a solvent that has a similar chemical structure; the ability for a solvent to dissolve various compounds depends primarily on its polarity.
Q. Which will dissolve most rapidly?
Cards
| Term A substance whose water solution is a good conductor of electricity is a Electrolyte or nonpolar substance | Definition Electrolyte |
|---|---|
| Term Which of the following will dissolve most rapidly? sugar cubes in cold water or powdered sugar in hot water | Definition Powdered sugar in hot water |
Q. Why does agitation increase rate of dissolving?
Stirring a solute into a solvent speeds up the rate of dissolving because it helps distribute the solute particles throughout the solvent. For example, when you add sugar to iced tea and then stir the tea, the sugar will dissolve faster.
Q. Which particles interact during the dissolving process?
In the case of a solid or liquid solute, the interactions between the solute particles and the solvent particles are so strong that the individual solute particles separate from each other and, surrounded by solvent molecules, enter the solution.
