How is it possible for two different ionic compounds?
How is it possible for two different ionic compounds to contain the same elements? They contain different ratios of the same element.
What happens when ionic compounds combine?
Ionic bonds are formed through the exchange of valence electrons between atoms, typically a metal and a nonmetal. The loss or gain of valence electrons allows ions to obey the octet rule and become more stable. Ionic compounds are typically neutral. Therefore, ions combine in ways that neutralize their charges.
Do ionic compounds react with each other?
When ionic solutions are mixed together, it is often possible to form an insoluble ionic compound even though both original compounds were soluble. When these two solutions are poured together, all of these ions move around in the solution and come into contact with each other.
Why do ionic compounds include at least one metal and one nonmetal?
Why do ionic compounds include at least one metal? Because metals need to donate e-, whereas nonmetals need to gain. If you have two or more nonmetals together they end up sharing e-‘s which forms a covalent bond. Ionic bonds form between cations(generally metals) and anions(generally nonmetals).
In what ways do the names of ionic compounds and molecular compounds differ?
Ionic: Cation is named first followed by the anion. If it’s an ionic compound with a transition metal, there are more than one possible ion. Molecular – named with the least electronegative ion first + prefixes are given to both ions to indicate number of atoms in each element.
How do you combine ionic compounds?
To find the formula of an ionic compound, first identify the cation and write down its symbol and charge. Then, identify the anion and write down its symbol and charge. Finally, combine the two ions to form an electrically neutral compound.
When some ionic compounds dissolve not all of their bonds dissociate?
When some ionic compounds dissolve, not all of their bonds dissociate. What kind of conductivity would you expect such a solution to have? If some of the ionic compound dissolves, but not all of their bonds dissociate you would expect to have a weak conductivity.
Can two ions react?
Precipitation refers to a chemical reaction that occurs in aqueous solution when two ions bond together to form an insoluble salt, which is known as the precipitate. Observing precipitation reactions can be useful in the laboratory to determine the presence of various ions in solution.
Why do some double replacement reactions not occur?
Now simply put, if a double displacement reaction results in the formation of an INSOLUBLE compound, this compound will precipitate out of solution and a reaction will occur. If both of the products are SOLUBLE, no reaction will occur and all of the ions will remain in solution.
What attractions hold atoms together?
science 6.2
| A | B |
|---|---|
| what attractions hold atoms together in a covalent bond? | The attractions between the shared electrons and the protons in each nucleus hold the atoms together |
| a molecule is | a neutral group of atoms that are joined together by one or more covalent bonds |
How do molecular compounds differ from ionic compounds provide at least two differences?
Molecular compounds are pure substances formed when atoms are linked together by sharing of electrons while ionic compounds are formed due to the transfer of electrons. 2. Molecular compounds are made due to covalent bonding while ionic compounds are made due to ionic bonding.
Can ionic compounds be separated by physical means?
Ionic compounds have 2 or more ions joined together by means of ionic bond into molecules. And the ions in an ionic compound most certainly cant be separated by physical means. Take the example of one of the most common ionic compounds, common salt , i.e, sodium chloride (NaCl).
How many ions are there in an ionic compound?
Ionic compounds have 2 or more ions joined together by means of ionic bond into molecules. And the ions in an ionic compound most certainly cant be separated by physical means.
What is the difference between ionic and covalent compounds?
Ionic compounds are compounds composed of ions, charged particles that form when an atom. (or group of atoms) gains or loses electrons. (A cation is a positively charged ion; an anion is a. negatively charged ion.) Covalent ormolecular compounds form when elementsshare.
Why do ionic compounds require a lot of energy?
High temperatures are required to overcome the attraction between the positive and negative ions in ionic compounds. Therefore, a lot of energy is required to melt ionic compounds or cause them to boil. They have higher enthalpies of fusion and vaporization than molecular compounds.