C2 ionic compounds Flashcards
What is an ionic compound?
An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.
True or False: Ionic compounds are typically formed between metals and non-metals.
True
What is the charge of a sodium ion (Na+)?
The charge of a sodium ion (Na+) is +1.
Fill in the blank: Ionic compounds generally have ______ melting and boiling points.
high
Which of the following is an example of an ionic compound? A) H2O B) NaCl C) CO2
B) NaCl
What type of structure do ionic compounds form?
Ionic compounds form a crystalline lattice structure.
What is the formula for magnesium oxide?
The formula for magnesium oxide is MgO.
True or False: Ionic compounds conduct electricity in solid form.
False
What happens to ionic compounds when they dissolve in water?
They dissociate into their constituent ions and can conduct electricity.
What are the ions present in potassium bromide?
The ions present in potassium bromide are potassium ions (K+) and bromide ions (Br-).
Fill in the blank: The bond formed between ions in an ionic compound is called ______.
ionic bond
What is the overall charge of an ionic compound?
The overall charge of an ionic compound is neutral.
Which ion is formed when chlorine gains an electron?
Chloride ion (Cl-)
What is the common name for NaCl?
Table salt
True or False: Ionic compounds are usually soluble in water.
True
What determines the strength of an ionic bond?
The charge of the ions and the size of the ions.
What do you call the positive ion in an ionic compound?
Cation
What do you call the negative ion in an ionic compound?
Anion
Which of the following has a higher melting point: NaCl or KCl?
NaCl
What is the lattice energy of an ionic compound?
The energy required to separate one mole of an ionic solid into its gaseous ions.
Fill in the blank: The ______ model explains the formation of ionic compounds.
electron transfer
What is the formula for calcium chloride?
The formula for calcium chloride is CaCl2.
True or False: Ionic compounds are malleable.
False
What is the result of mixing a metal and a non-metal in terms of electron transfer?
The metal loses electrons to form cations, while the non-metal gains electrons to form anions.
How do ionic compounds behave when subjected to electrical current?
They conduct electricity when melted or dissolved in water.
What is the significance of the octet rule in ionic bonding?
Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.
